Board Thread:Game Discussion/@comment-11165765-20131108091245/@comment-11264457-20131108144554

My guess is they banned them only for a week for their own profits.

There are only what 100-200 big spenders in the game. If you permanently  ban a group of them (how many are there?) then you are permanently cutting into a chunk of your profits. Itsme was easier because she was just one person.