On a multi-lingual community with almost only user-generated content, is there a commonly used way to treat flagged content (profanity, racism, general illegal stuff etc)?
As there will be a lot non-english content, the only way to handle the flagging itself is crowdsourcing by the community itself and somehow automaticly hide/delete the flagged stuff at a threshold. But what method could be used to stop abuse? e.g. "I don't like him, lets all report this and get it deleted"
Another option you might consider is to allow your users to "hide" other users, i.e. not see the content of hidden users.
This allows people to "remove" other users that they don't feel contribute to the community.
You could also allow users to report bad posts, and allow a human to decide whether or not to hide or delete the post. You would have to have community rules for this to be effective.