All bans being removed was a deliberate decision. With this update comes an entirely new set of rules. Most of the profanity filter is gone too. Lots of users were banned permanently for things that simply aren't against the rules anymore. With the Hide/Mute buttons feeding both your Personal Ignore List as well as the reporting queue, and with the moderators having a very restricted list of things they are responsible for, we felt it best to give everybody a fresh start. So far, it seems to be working well.