spammers out in full force!

so after reading spam posts and troll posts... heres an idea?

make all new members have to pass a 'quiz' with info available in the stickies/educational threads before they can post?

then we can assume a basic knowledge and avoid several 'hi im 15 years old and i wanna take pills to get swole" threads..

The spammer is a former member imo. He will be able to pass a test. The site benefits from people signing up so creating a barrier to entry would be counterproductive.