When they start to charge their customers.

I know I’ll get downvoted first this, but this kind of thing happens because each user in general is earning them cents and the the only way to enforce their policies is to do it on mass with automation and review by a human if the person complains (and then often rushed and not very well).

Although some large accounts will get account managers and are handled more carefully. The truth is that even if these are deleted, their viewers will just spend their time watching others.