To quote myself:
Ehh, I was a moderator luckily only for a few months with the whitelist system, and it was not fun. I remember going through newbie jail, I dont think it had a post requirement at the time, I just left Bitcointalk open for 4 hours and just went and did something else. I also delayed signing up for a few months, using a friends account because I didn't feel like going through newbie jail. People don't seem to realize that getting rid of newbie jail doesn't really change much, it just delays spammers/bots by 4 hours, so essentially after 4 hours of changing the newbie jail system, things would go back to normal. Anyway, report bots/spammers/account farmers if you see them. There are a few staff members who are really good at purging large numbers of spammers at once. Report one, and 20 will go away quickly.
Point being, newbie jail is a strain on the staff, and it doesn't do anything positive. The only people it interupts are the individuals with 1-2 accounts that are here to actually learn/discuss. A 4 hour waiting period doesn't discourage spammers, because they just make 20 accounts and wait for the accounts to get out of newbie jail in shifts.
So take that into account when setting up the rules. People want this. It's 14 to 2 at this point (the no activity troll doesn't count).