Not sure what it was, tbh. Never been banned before (like you said I'm pretty well behaved (I save all my trolling energy for political websites)) but I couldn't post, read new posts, or access my control center. Every link outside the menu frame was broken. But when I came to the page through a proxy everything seemed to work fine. I cleared my cache, disabled addons, and used a different browser but still had no luck till late last night. And I only had this problem on this site.
Anyway, if it wasn't me, and everything is working now, I'm not really put out. Thanks for checking.