I have a feeling Reddit is mostly nerds though, after this I doubt there is going to be anyone left.
Recently I've been moving to Facebook Groups. Compared to Reddit the groups are much more niche, which is a good thing.
On Reddit there is a general sub about a hobby I'm interested in with 198k subscribers, on Facebook I've found groups with the specific niches of that I'm interested in with 16k - 30k subscribers. The questions are much more specific, and the people there are a lot more knowledgeable. The people on there seem friendlier too.