https://mlpforums.com/topic/199718-brohoofs-for-level-up/#comment-6111603
Unless something has changed, points can be awarded for a number of things. I seem to have quite a bit more points than posts. I'm almost a Griffin, which is 2,500 points, but I only have 1,733 posts.
An admin can see what rules are in place for awarding points. And so far, I have not been able to find a full breakdown of how points are earned.