His bad reputation is more of his own stubbornness and bad choices or decisions than because it being a niche fetish hentai developer (that it also makes things harder to make others be by your side) like someone else said, he should look for more open minded people, nowadays it's no easy to get such help but his attitude doesn't belt either. And the fact that he apparently gets someone to help him and then they turn their backs on him at the first opportunity is also very bad, all things considered.