anti-spam idea

[HibyPrime]

Would it be possible to prevent anyone for posting until ~10 minutes after they register?

I think it would stop a lot of the people who are just going around to as many forums as possible from posting spam, as they could easily register and post in 2-3 other forums in the time it would take to post some spam here..

Or maybe (this one would be a fair bit harder to implement) everyone's first post must contain 'Alizée' and all the variations of how to spell it..