I don't think there are numbers to describe someone's activity on the forum, for quality posts I think it's also subjective to the reader. I can even give merit to 3 word posts that I like. In fact, I have registered since 2018 and only have hundreds of posts, compared to others in just a few years there have been thousands. So just enjoy the process, don't worry about rank or anything, just do what you like, as long as it doesn't violate the forum rules.