anyway, wouldn't want to derail this thread:
Why not PQ the author and ask him?
No, don't do that. Comments are deleted on a no questions asked policy.
…Apparently.
Seriously though, it's no big deal. Unless your comment was offensive or spammy or something. If not, it doesn't really matter. The author either didn't want it on his/her page or by accident, deleted it. Let it go man. :)