# Comment @ only works some of the time? [duplicate]

Possible Duplicate:
How do comment @replies work?

Simple enough question. Only once in a blue moon, when commenting, am I able to use the @ button to tag someone. Usually, @ does nothing. Is there a reason for this?

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## marked as duplicate by ben is uǝq backwards, randomNov 15 '12 at 23:46

@DaveShaw You can @tag the post author if there are comments by several people already (not sure whether that requires that the post author be one of them, a short test suggests yes). (Sorry for the noise.) –  Daniel Fischer Nov 16 '12 at 1:43