I don't have a clear answer to this question because I haven't received any special merit. But, I will say that when I got merit for the first time, I was very happy. I can do something.
Maybe it's very difficult to get merit or maybe my posts and comments are not of high quality to be merited so I don't know much about it but all the merits I got, I'm very happy about it. A motivation has arisen to make myself active in this forum.

Remember, competence is not the only measure of value. Your engagements and contributions are valuable in themselves. Keep sharing your ideas, learning from others, and enjoying the support of the community.