I find the structure of Touhou and its loose canon makes me so much more lenient than any other fandom I've ever been in. I'm usually the "I don't like it but I'll ignore it" fan, who reads/writes what I specifically want, even if I'm the only one who writes it so I only read my own works, and never start yelling at other people who believe differently. But in Touhou, instead of having an OTP for a few characters and never crossing pairs, I'm extremely lenient as long as the work isn't squicking me out, and even write multiple pairings per character. And I love reading about how different people interpret the various little hints that ZUN has left as to things going on.
It helps that I'm the type who loves to try and figure out if certain ideas can work based on canon, and Touhou has a lot of questions with multiple answers.