I was popped there at least twice, maybe more. Looking back, the first time was because my post opened as Ivor described. The other times had to be due to either IP issues OR... a mod recognizing something from here and banning me there.

Then, Jamesn pointed me in the direction of web proxy servers and life has been good since then. Problem is, other than arguing against gun control or topics in tech talk none of the other threads are worth a post.