Well, I’d say that I’m a typical hobbyist. I find something, plsy with it, share my enthusiasm, and so on, but I rarely go really deep.
So comments like yours are excellent because:
1. They mention things that I might know, but didn’t mention in this post, which points other readers in new directions, and;
2. They go deeper than I’ve gone, so even if I know the general thing, I still learn something.