Better yet, to graduate to "level 6", force them to answer a poll.
The question is random, but chooses from several hundred questions like:
Who attacked us on 9-11?
The answers are: 1) jews. 2) jews. 3) jews.
Then there's a warning that it will create a post with this question as the title and answer as the message content under their username when they hit submit.
If they refuse to answer it, they get reverted to L0 and their points wiped out.
(post is archived)