Character: Chesticles, Lvl 60 Gnome Mage
Server: Nostalrius Begins PvE
I don't have a lot of information that I know could help, but if anything, the last I recall playing was yesterday evening (3/17 US West Pacific), playing on my mage and running Kwuadzilla, Seymor, and Peltz through Gnomeregan. I didn't have any addons enabled or installed in my interface folder at all, bannable or not.
To give some background, I had gotten a new computer on the 1st of March after my old comp started making strange sounds and it was suggested I get a new one. The new one had issues after a week, needing constant restarts to fix some bad login errors that kept popping up, until it completely shut off and no amount of restarting got the computer to the windows screen. I turned in my computer with the warranty I placed on it, and came back with a laptop instead. Logged in today, and said I was banned, with no reason stated.
I hope the information I gave helps to resolve the issue.