The actual problem, binary labeling. If the category system is just "sexy" vs "non-sexy" you're going to piss off a ton of in-between. However, you want to do it, IDK. It can be sexy+1 to sexy+10 or mildly suggestive to NSFW. But Twitch needs to acknowledge there's a spectrum and ignoring that there is one is just going to piss people off.