Don't worry, this guy has just been copy-pasting his message for years. He doesn't bother to say so when it's a game with only heterosexual content. A little research and he'd know it's inspired by the webcomic.
I've seen it in several games I follow, and he even says it when the creator says there won't be any gay/futa content.
I never say anything, but I'm starting to get fed up.