i don't have a horse in the ecats race, but i definitely agree with you on gen and smut memes being made specific. a couple times i topleveled to one of the "hybrid" memes, not really thinking i needed to specify "not looking for smut" since something like the bodyguard meme doesn't really seem to be very smut-inviting, only to get hit with smut prompts. another time i posted to one looking just for gen, didn't specify gen only (again, my mistake) and got briefly namedropped here for it

hybrid memes are the lazy way out which is why they're so popular, but i think your way would bring less confusion at the end of the day