Xxx — On Youtube //top\\

assumes you meant the adult industry ("adult content"). Option 2 assumes you meant the Gen Z slang meaning "toxic drama" or "cringe."

When you think of YouTube, you probably think of cooking shows, video essays, or music videos. You don’t think of NSFW content. Technically, YouTube’s guidelines strictly prohibit explicit pornography. But if you look closely, there is a massive, thriving gray area where "XXX" meets mainstream media. xxx on youtube

We call it "watching XXX" because it feels dirty to witness. assumes you meant the adult industry ("adult content")