Board Thread:News and Announcements/@comment-25303249-20150106160648/@comment-24826734-20150106233345

A chat moderator can kick or ban users in the chat. They cann also revoke one's chat ban or extend it.

Also, the only people who you kick/block are people who are doing stupid stuff in the chat (harrassing, talking about s--, you know what's bad) and good people who asked to be kicked (but not blocking!).