Honestly, Spark Mandriller, just about no one who is a major Touhou fan discusses the games. The fandom largely centers around the characters, the supplementary writing and especially all the doujin material, the games are there and they have a place, but they are by no means central to the whole thing. Seriously, I spend a substantial amount of time on an RP site specifically focused on Touhou and people rarely talk about the games there are either.