A Lot More People Have Premium Than You Think
Hey I'm a smallish YouTuber (20k subs) and when you're a YouTuber you can see which of your commenters have premium.
And I gotta tell you like 35% of my comments are users who have premium. I legitimately thought it would be about 5% of YouTube users.
Obviously people who comment on videos are a bit more into YouTube and therefore more likely to pay for premium, but still.