The point of the points that you get when you post in the forum is supposed to be a bonus for "already posting" in the forum. You will most likely not use this avenue to earn your lion share of points for tourney buyins (eg:you will use the offerwalls), as it would take almost a week of posting to earn enough points for one tourney. But if you are a forum user, you like to post and you are active, you may as well capitalize on the free points.