One month AND 50 posts is the minimum to get PMs turned on. Keeps the spammers and bots to a minimum. I know it stinks for the new guys, but I've been on here over a year now, and I've sent less than 20 PM's, maybe 4 of which were necessary.
BTW Pulse, your attempt to up your post count by repeatedly posting nonsense must have gotten deleted, which lowered your post count.