A now disabled tag that would insert every logged in user's name as if the poster was uniquely addressing everyone.
It had hilarious side effects and you could troll the living daylights out of GAF but it also has more reaching implications, in regards to privacy. You do not want a piece of code on your site that auto-adds any logged in username, could see that easily be abused for malicious intent.
Looks like we had a glitch when moving to our new hardware setup a few days ago that reverted a bit of code. I'll see about getting the fix applied ASAP, but in the mean time I'm refunding your payment and crediting you with a month of gold. Sorry for the trouble, and I'll post here again when we have the update through and everything's copacetic.