[@Terry Bogard] Niche is sort of a nebulous term anyway. Back in the day, any non-Capcom fighting game was niche. Though after some questionable choices by them and solid moves by Arc and Neather Realms, We've seen Mortal Combat rise above it's campy origins and Arc is really becoming known for solid anime style fighting games. KOF feels like a name that would come up pretty often if you asked people to name 10 fighting games. It's probably not in everyone's top 5, but it's something everyone's heard of. But I don't really know. It's been years since I've been on a fighting game forum. 

It's less a lack of will and more a lack of [i]time[/i]. I'm currently GMing two forum RPs with sizable casts, participating in about two more, have a full time job, as well as other hobbies and responsibilities outside of that. I would love to play with you down the road, but it's not in the cards right now. And yea, toxicity is everywhere, but some have much more than others.