This question already has an answer here:

I recently asked a question on Math.SE and got an answer. However, I wanted some clarification so I wanted to add a comment. However, I am unable to use the @username feature to make sure that the answerer gets to know that I had requested some clarification. I have tried to edit and even post a new comment. I type @username and then my comment. However, when I press "Add Comment" Button, the @username simply disappears and only the main comment body appears in the comment.

Could someone explain what is going on and how can I notify the answerer?


marked as duplicate by Martin Sleziak, Surb, user99914, Joel Reyes Noche, Najib Idrissi Jul 1 '15 at 7:42

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.


If your comment is to the author, the @-usernames will often be removed since the author gets notified of all comments anyway. Only if there are others commenting, and there is some chance of confusion, will the system leave them.

  • $\begingroup$ So if I comment on an answer given by some user then he gets notified immediately? $\endgroup$ – Vishal Gupta Jul 23 '13 at 16:23
  • 2
    $\begingroup$ That is how it is supposed to work. $\endgroup$ – robjohn Jul 23 '13 at 16:42
  • 2
    $\begingroup$ As the question shows, there is added chance of confusion from the system deleting part of our comments, and there can be ambiguity as to whether the comment is intended to be directed toward the user who posted the answer or a more general comment (or whether it was directed at a comment that was subsequently deleted, or hidden after more than 5 comments). When my comments are directed at a particular user but the @ thing is deleted, I will often just add [userneme]: to the beginning to remove this chance of confusion. $\endgroup$ – Jonas Meyer Jul 23 '13 at 18:47
  • $\begingroup$ @JonasMeyer: the only @-name that should ever be suppressed is that of the author of the article being commented on. If I see a comment without an @-name, I assume it is intended for the author. $\endgroup$ – robjohn Jul 24 '13 at 2:31
  • $\begingroup$ @robjohn: I am aware of that, but thanks for making sure (I see that my comment wasn't entirely clear). I think your assumption is accurate most of the time. $\endgroup$ – Jonas Meyer Jul 24 '13 at 2:35
  • 1
    $\begingroup$ just to further clarify what @robjohn said: the replies feature also allows for the author to respond to the comment without using an @ symbol when there is only one commenter. That is to say, robjohn's first comment in this thread would also arrive in Vishal's inbox. Obviously robjohn's comment was talking about commenters other than the author himself (if would be strange for the author to talk to himself... though it has happened.) $\endgroup$ – Willie Wong Jul 24 '13 at 7:31

Not the answer you're looking for? Browse other questions tagged .