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Possible Duplicate:
How do comment @replies work?

I fully expected to find this question already asked after typing it in, so if there is a duplicate somewhere please direct me to it...

I can't seem to tag some people in comments. I would have said that it was only people with spaces in their name, but I was actually able to tag someone with a space in their name just a minute ago.

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marked as duplicate by Mat, Arjan, Time Traveling Bobby, Yi Jiang, kiamlaluno Dec 10 '11 at 15:28

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See also the usage notes in Tab name completion for comments please! – Arjan Dec 10 '11 at 12:04
    
Not only can you only notify one person per comment, the @name will be automatically removed if you're trying to notify the only other person in the conversation. – Pops Dec 10 '11 at 16:32
up vote 3 down vote accepted

You can tag only one person in comments with @. More about how comments work in How do comment @replies work?

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Thanks, I'll have to pay attention to when it happens in the future to see if it's because of one of those rules. – Brandon Moore Dec 10 '11 at 9:05

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