I think the OP was correctly referring to
Ubuntu Forums. The question was about how they couldn't post there, and they were able to post it here; if it had been about Ask Ubuntu, then presumably they would have had some trouble posting it. The CW answer was written (originally, if you look in its revision history) by a user who is very active on Ubuntu Forums (and who I
think was a moderator there at the time) but who isn't and hasn't been a moderator on AU.