I absolutely agree with this, though I know it's an extreme position to take and it's unpopular as well.  The vast majority of threads created by noobs are to ask questions that have already been asked a hundred times already, and all the noob has to do is use the search function to find his answer--and they can't be bothered to do this.  And if newbies were restricted in this way, it would also solve the problem of bots creating new accounts and spamming nonsense, like we've seen in the past (though I think this has been solved, perhaps with the captcha).

I mean, come on.  You wouldn't be creating a serious hardship by not allowing newbies to make new threads.  It might be somewhat inconvenient for them, but such is life.  I wasn't here when there was a noob jail, but it sounds like a great idea as well.