Post because you're curious or share something interesting. Even if is a niche, that's okay if you post it inside that niche. Don't post for the attention, or look like you are. There are only around a hundred people on at any given time and a concentrated group within that are always or near always on. This is not reddit in size or scope. Treat this place about like a large class in school, maybe a lunch room full at most.

Look at what others do successfully and emulate it. If you get different results, you still haven't figured out what they are doing in practice.