Do you have some niche Hobbies or interests you haven't found a community on the internet for so far?<p>Maybe there are HNers sharing your passion.
My issue with niche interests is not that there aren't communities out there, but that they tend to be fragmented. Facebook/Reddit attract a lot of users, but tend to generate poor discussion and long-term engagement. Specific forums and communities are much better in my experience, but much harder to get going and keep going. So overall I feel like there's a lot less discussion than there potentially could be.
I have a niche interest in coffee and coffee shops, but more for the culture itself. Historically, cafes were hotbeds of intellectual discussion, debates, and political movements. Nowadays most online coffee forums are just gearheads comparing technology and flavors.