Lack of time, autism, and anxiety. Not exactly good traits for starting and maintaining a community. And to be honest, interacting at my own pace is OK, but feeling like I had to would be way too socially taxing.

It's really not for everyone. I'm not cut out for that. I'm the kind of person who comes along with a weirdly detailed answer to an incredibly niche question. It takes all kinds to have a vibrant community.