As newbie you make account and start posting or being active in the forum and you got about 1 merits to 10 merit on there own which makes them member rank right? Good! Then you needed more of 90 merits to get you full member rank. At this point theymos can set the system whereby if you gained 70 to 80 merits the system should automatically credit you 20 to 30 merits instantly without having to apply for merits counts down, and if such person is being credit such merits s/he have about 10 to 15 sMerit to spend to others whereby merits circulation won't be that scarce again.
I don't think this idea is a good one, if the system start crediting users 20 - 30 merit to rank up it is a way making the standard of the forum very easy and when a system is easy it is an opportunity for users to abuse it to farm more accounts. Let things just be the way it is, their are a lot of users who are able to rank. The forum is never hard for those that are willing to make good contribution to the forum and merit won't be a problem for such users.