I think I've detected a bug.
A user directed a comment to me yesterday, and the direction
@TomZych) appears to be correct. However, it's not listed in my
inbox, nor in the list of responses on my user page.
This is a one-off thing. I've never noticed it happening before, and I have no idea how I might reproduce it. On the other hand, the inbox and list of responses are consistently not showing it, so it's reproducible in that sense.
Could this have happened because there's a period directly after my name? Commas and colons don't cause this problem, and according to this post, periods are not allowed in usernames. If this is the reason, I think it should not do that — it's unexpected behavior and I see no upside.