Learned merit system is easy based on my experience, until right now I have 50 points merit received in several board and many people give contribution for reaching 50 merit so far. You faced difficult understanding how merit rule can check other user with their level up faster and check how many merit received in daily day.

You can comparison or learned from them how possibility and easy got merit, actually with good post reputation easy to earn merit points but you need little effort looking on board with many merit source, or you can follow some user have good habit for sending merit in their topic.