So, here's what I believe should be the complete list of shenanigans/history of Pow:

So a few stories start to rolecast. He starts sending in overpowered characters. He gets rejected sometimes, he gets accepted sometimes. However, when he gets killed off or rejected, he starts to spam threads and declares it "dead". Then he starts making some pretty terrible fanfics that never got launched off its first paragraph. People get annoyed and send in support tickets. Hyperion and Euydice come in and ban Pow. A few months pass and all is well. Suddenly, Pow returns in the form of Return-of-Pow, claiming to have "ban undo", while others say he is ban evading, which both is against the rules and ToS.