Sounds like trouble for Newpipe, Sponsorblock, etc…
The problem is not having to pay. The problem is that, even while paying, they always find a way to fuck it up by sticking another stupid factor to fuck users over. Look at Amazon Prime video for example: “prices will not increase (already paying), but we’ll slap ads unless you pay even more”.
They all function exactly the same way. Just adding costs for the users, and never value.