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As seen HERE, pings aren't registered when they use less than 3 characters.

His name "C X" is 3 characters, but because of the space and the way spaces are removed for pings it doesn't seem possible to ping him unless it's a direct reply.

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Why can't he just change his user name? I'm assuming he can't be notified in comments, either. (Hmmm, that gives me an idea...) – Cody Gray Aug 4 '13 at 17:15
He already knows. But why have him change his name? It's a bug in the way the system is setup and it should be fixed by either changing the way pings work, or changing the requirements for usernames. – Josiah Aug 4 '13 at 17:24
From experience... He could go with "C.X.". :) – A.M. Aug 4 '13 at 22:16
@A.M. I hope you're just joking because of your own name :P. This needs fixed though. We can't just treat the symptoms, it needs to be fixed from the core. – Josiah Aug 4 '13 at 23:53
@Jhawinsss I agree that seems like a hole that needs to be patched. I just thought I would point out a solution that would work for "C X" now (message notifications work for me) and be barely a change of identity at all. Yes, though...kind of funny that we both have two-letter user names. – A.M. Aug 5 '13 at 0:20
Whoever downvoted needs to explain why. – Josiah Aug 6 '13 at 19:42

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