A proposal concerning new Fluther users?

First off, most new users that join Fluther ask questions that are sincere and are ‘just’ looking for answers.
However, there are some that come to act as trolls, spam around or ask tumblr/2012/dream related questions and although they can not know it, in doing so, ask questions that are asked almost daily/weekly.
These are, of course, still questions that may be asked, all questions are legitimate.
But wouldn’t it be an idea to ask of new Jellies to lurk around for some days first, and/or let them answer a few questions first, before they can ask questions themselves?
That way a new user can be encouraged to get the feel of the site, maybe search around a bit to see whether their potential question has been asked before.
It also, i think, would prevent spammers from drop their junk, the moment they made an account, and trolls would maybe be discouraged—since their urge to troll would fade away when faced with a waiting period?
Again, i don’t want to talk bad about new users here, i was one myself, as we all were at a point, i just want to throw this into the group to discuss for (possible) improvement.