What i thought of was an idea where an Introductory section was implemented into the forum, whereby, if someone were to join the forum they would be pointed to this specific section and would be asked what they are joining for, what they hope to achieve, what can they bring to the table etc etc. Basically, a way to see if people are genuine or not and in a way-POLICE (politely) members prior to actually posting elsewhere.
Read what theymos said:
Limiting newbie participation is very harmful for a community. Newbie jail will never return: I consider the newbie-jail period to have been extremely damaging to the forum. When barriers to participation are too high, then the best people often just won't go to the trouble of joining, and the people who are willing to jump through the hoops are often people who aren't good for the community: people with nothing better to do, scammers, get-rick-quickers, etc. Having a permanent newbie jail policy would improve things a lot in the short-term, but would end up being a fatal poison to the community.
There needs to be more action taken by staff. More thread-locking. Despite their efforts, I still see many sections filled with a cacophony of bullshit, spewing dozens of pages of lusterless incoherence.
Not only thread locking, but thread thrashing. You can't find one good topic to post in and have legitimate discussions in, when you go to sections like Bitcoin Discussion, Trading Discussion and Altcoin Discussion. Not to forget the Economics and Off-topic board. I want to visit the off-topic board and have some fun but no, the spam is just too much.