Chat filter should remove entire chat message

At the moment, the chat filter changes certain words to certain other words in a very predictable manner. This is not entirely useful since it's still obvious which word was actually intended. If the goal is to keep world chat clean, removing the entire message and warning the offending user would accomplish this much better. I believe no mutes should be awarded for a first offence on the good-faith assumption that the user comes from a culture where that language is acceptable, but a warning should be given so that the user knows why the message did not go through.

(Inspired by Silkcom's suggestion in chat: world ‎1‎:‎12‎:‎00‎ ‎AM silkcomLOL - i guess i could make the filter remove the entire chat if it contains offensive words)