I think that while the merit system is good, the limits for rank upgrades are too high. I got 10 merits so I was able to upgrade to a Member, but upgrading to a Full member is an impossible task - I can't imagine how many excellent posts should I write to get another 90 merits. Has anyone succeeded to get so many merits yet?
You don't need excellent posts. The only thing which can bring you up the ladder now is powerful friends.