I have about 230 posts currently and let me tell you that achieving 10 merits by far the hardest thing to achieve with all the help in the mining forums I try and do, believe you me.
Like trying to get blood out of a stone.

But I agree on the top end of the rankings as there seems to be a psychological notion to give more merit to people on their rankings than their actual posts.
Not bitter in anyway as I approve of the system but just an observation that is very noticeable.