I've missed every banwave only using rotation. I bought legion 2 days ago. Magically hit with a banwave. Any of the other banees just buy the xpac too, If so we can at least make a case for a refund for the expac as blizz would have to explain that they were waiting to ban accounts until they had purchased legion. I personally hadn't used the bot since I bought the ex-pac, mostly due to it being down from all the patches. I'm starting to think they have a rolling banlist and you get highlighted when you drop the extra money for the xpac. If you escaped this wave I highly suggest avoiding pre-purchasing legion.