It's something I feel I'm only able to do out of love for the series. Like, I know I have something of a reputation as a Touhou glazer on here, but that extends well beyond VS debating; I'd say about 80% of my current personality owes itself to Touhou, and I've got plans to start an archive indexing any and all official material that exists simply because I've got way too much knowledge that I feel needs to be shared (and it's not like anybody else is doing that level of research, as far as I'm aware). If I didn't love this series with every fiber of my being, there's no way in hell I could do that amount of work. But uh, I'm bound to Touhou for the rest of my existence, so that's how you end up with profiles with a shitzillion scans and references. So frankly, autism is only half the story - the other half could probably be classified as some kind of mental illness, but at least I'm having fun with it.
The Blade Physiology page looks good btw, I think it's a good example of how most pages should look.