Reddit is better than FB and most other forums WRT readings posts that interest me about my hobbies: music & guitar playing, photography, and motorcycling.
There are hobby-specific online communities, but frankly, those don't appear as healthy and having as much interest.
I find this true as well so I just subscribe to those specific subreddits via RSS and Newsblur. I also create a new Reddit account once a month so that I don't fall into a habit of letting my account share too much personal data or letting myself fall into the trap of caring about upvotes. It's worked very well for me. I read the posts that interest me and I don't just "scroll Reddit" out of boredom.
There are hobby-specific online communities, but frankly, those don't appear as healthy and having as much interest.
Obviously YMMV.