71

Nope. Nobody has the right to usurp your time. In fact, it is rude of someone to expect that you drop everything to answer every single follow-up question they may possibly have. You are here for your enjoyment, not out of a debt to anyone.


36

"Rude" is maybe a strong word, but it is certainly discouraged. If you do it once, likely nothing much negative will happen. But as a rule please do not do this. An exception might be if the posts are extremely closely linked, say, if you ask a a direct follow-up question or something like that. But even in that case I would recommend to be ...


30

In the specific case you describe I second what J.M. said. In my opinion the most apt course of action is to state that you do not wish to elaborate. This has several advantages: OP knows there is no point in waiting for you to reply. Others will know that you decided actively not to elaborate further and this might very well inform what they do. It is ...


15

Could you be a bit more specific about the situation in which you expect to get a comment. In the current revision you write: "I do not get a notification when someone writes a comment under an answer, where I commented too." AFAICT that is exactly how this is supposed to work - with one notable exception that if you and the OP are the only users ...


10

To signal the (perceived) problem with an edit via a comment on the concerned post was the correct approach. The software allows to comment-notify editors of questions for this reason. It is also alright that you replied there. Would a longer exchange start it would make sense that you agree to move it to some chat-room or to the meta site or just drop the ...


9

I wouldn't find a one-off comment rude or even a problem in the slightest, especially if this was a subject of particular interest to the user. After all, it takes a moment to be notified of a comment and to either ignore it or to reply that it's not of interest. Even better if you later prune away your comment. But to do this repeatedly or in volume would ...


8

There are some situations when a user is notified about comments even without being addressed using @username syntax. Details on how comment-replies work can be found here: How do comment @replies work? The situation you linked to in your comment is mentioned there too: Note if a user comments on their own post and there is only one person who has ...


8

This doesn't exactly answer the question, still posting my comment to the question as an answer, for future reference: Anyway, while I can guess to whom I was speaking, sometimes I have no idea. You might find this tool useful to find to confirm your guess: Old usernames by almost Living Forever NormalHuman (This tool helped me confirm my guess that his ...


7

It depends on the circumstance. If you post one comment or answer (a hint, as you say) and the OP requests further clarification in the comments and you choose not to reply, I believe that is rude. Facilitating mathematical discussion is the reason we have a "commenting" system; if you're uninterested in discussing, don't answer in the first place. If you've ...


7

This feature was proposed already more than five years ago Allow for setting comments to "auto-expire", to become "temporary comments" and several times since (see the linked "self-destructing" and "ephemeral" there). There are some reasonable usecases, mainly in exchanges, like: @A This is confusing could you clarify? @B I tried to ...


6

If they have all recently been in the chatroom you are in, or participating in the same comment thread, then there is no way to differentiate them. If you ping one, you will ping them all. user147263 points out that Rule 4 says that in comments, the user chosen is the user who matches the name supplied who has participated in the comments on or edited the ...


6

To complement robjohn's good answer let me just add that not rarely when it is used in fact it does not do anything as user use it in ways so that it will not result in a notification (or indeed will be redundant as you remarked). Very roughly, it can be used only to reply to users already in a communication not to call somebody into a communication. ...


6

In chat, the '@' symbol signals type-ahead for names and usually makes an audible ping on the recipient's computer as well as leaving a message in their inbox (the blue inbox icon next to "StackExchange"). In comments, the '@' symbol signals type-ahead for names and leaves a message in the recipient's inbox As Martin Sleziak comments, your global inbox is ...


6

From the Meta Stack Exchange How do comment @replies work? thread: Matching is performed in reverse chronological order, so if five people named John are participating, @john will match the most recent John. Note that only users that have somehow participated in a post receive notifications of @replies. From the same answer, the complete list of the types ...


6

I believe that simply choosing not to reply is a bit rude. I would support leaving a comment such as "Please put more effort into this question. I would rather not post a full solution" instead of not replying.


5

Think about what you would want, if you were asking the question. (You should be able to figure out the answer from this fairly good hint.)


5

I understand your point that sometimes you feel that the student is not giving a minimum effort, and it is true that you have no moral obligation to reply and elaborate. The best course of action however, in my eyes, as a student, is to reply by saying something along the lines of: "what I have written is a direct basic application using the definition of ...


5

Since the link in the accepted answer seems to be dead, here is a solution using SEDE. We're looking at comment replies used below posts by a given users and after comments by a given user. This is by no means foolproof, but usernames of the given user are certainly more likely to appear in such replies. Usernames used in possible comment replies to posts ...


5

The main underlying reason for what you see is that in cases were explicit notification is not necessary as it would happen automatically (notifying OP of a post, or OP replying to a unique commenter), it is stripped or at least not supported via autocomplete. Moreover, only usernames that actually would result in a notification are autocompleted, e.g., ...


5

As a moderator and many others have noted, comments are ephemeral in the StackExchange scheme of content. So avoid leaving important content only in Comments. Significant (non-tangential) ideas should make their way into Answers or (in many cases) into to the body of the Question through appropriate edits. What is being said, rather than who says it, is ...


4

Since the system automatically notifies you on every comment made on your post (be it answer or question), you don't have to lose sleep over this. Jochen is being notified of your comments. In case there is no ambiguity, the system removes @username of the original poster when it occurs at the beginning of the comment. This means that if no one [except you] ...


4

When you comment under a post, the post author is always notified, so there is no need to alert her/him with an @-ping. If so far nobody except you and the post author have participated in the comment thread, an @author is automatically removed from the comment, since it is deemed clear whom you address with your comment. If you nevertheless want to ...


4

This old MSO thread gives a bit of information about this. This somewhat newer MSO answer gives a hint of how this came about. (Note that the thread the latter link is on is a status-declined feature request to not remove the @ part of a comment.) Finally, just in case you want even more information about @ replies, read here.


4

As mentioned in the other answer, the most complete identifying string is with space removed, this is also what autocomplete suggests and at least in a technical sense this is the most correct string. However, anything that matches the at least first three letters (without space) will work. It is thus quite common to use only the first part of the display ...


4

The software tries to avoid @name syntax when it is not needed. Presumably you were in one of these two cases: You were the original poster and there was only one other user that had commented. You were addressing the original poster of the post (and there weren't others commenting already). In these cases, the other user is notified no matter what and ...


4

I will share some of my thoughts. The main reason you run into these disagreements is, AFAICT, the following: Various users on our site hold wildly differing ideals of what they want the site to be like. This will then reflect on what kind of material they upvote, downvote, vote to close, vote to keep,... As a metaprinciple I think that for the site ...


4

A regression bug was introduced here that prevented some (but not all) comment notifications from going out. The issue has been fixed. Unfortunately there is no practical way for us to requeue the comment notifications that didn't get sent out in the past few hours.


3

An additional method to find prior displaynames is querying the PostHistory table. It holds for some events a JSON blob with the userid and displayname at that time. For these events the Text column hold info on the user that voted: 10 Close 11 Reopen 12 Deleted 13 Undeleted 14 Locked 15 Unlocked 19 Protected 20 Unprotected 35 Migrated away Here is that ...


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