It's kind of hard to make a system that would flag names like that, it would end up flagging people whom create characters with odd names from another language. I've seen tons of people with almost unpronounceable names that pretty well look like they tossed a KB at the wall to come up with it.

They need to impose chat restrictions. Luke you need to be level 15 to use /shout, or can't use PM unless you were whispered first.