User blog comment:Yami riku/How to Remove the Chat Filter/@comment-25646419-20151115225831/@comment-25646419-20151126073541

Hitler and Stalin were filtered due to people constantly being offensive with them. This is also why you cannot select to use those names during a game. The system will just say that you are trying to use profanity.

God and Jesus used to be filtered into "Lord Almighty" for the same reasons, but after numerous complaints they have decided to remove that filter. They weren't trying to offend anyone by censoring the names but it ended up happening.