I find the following occurring bug weird.

When I post a comment I start with @someone.

But for some reason this does not always get into the text.

I get no error message but it is not there.

In the beginning it occurred so little that I started to doubt if I perhaps forgot it. But it occurred more and more and even with edits I am now not always able to do it. It seems to appear more often to people with a rep below 100 if I'm not mistaken.

Assuming I do not have a keylog or something I post this.

  • $\begingroup$ The solution is to type !user instead of @user if you wish to include the user's name but the system removes it. $\endgroup$ – Carl Mummert Apr 20 '13 at 1:03

For the "official" SE specification of @ pings see this MSO answer on how comment replies work. Most likely what is happening in your case is that the software is deleting the recipient since the author is already a default recipient, so the ping is redundant. You can notice this in advance since completion will not work ("Tab" completes usernames here).


This isn't a bug. @s are automatically stripped if, for example, you're trying to address someone in a comment to one of their questions: they already get a notification, so it's unnecessary.

  • 1
    $\begingroup$ To add on this, if there have been other participants in the conversation the system will allow you to ping the poster to avoid ambiguity. $\endgroup$ – Asaf Karagila Mod Oct 4 '12 at 21:49
  • $\begingroup$ That is not consistant with it occuring sometimes and sometimes not in the same thread. $\endgroup$ – mick Oct 4 '12 at 21:49
  • $\begingroup$ But thanks for the answers/comments , I see now its not ( a complete ? ) bug and has meaning. $\endgroup$ – mick Oct 4 '12 at 21:51
  • 2
    $\begingroup$ It is not a bug at all, @mick. It is your unfamiliarity with the software. $\endgroup$ – Asaf Karagila Mod Oct 4 '12 at 22:09

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