>Patreon became successful mostly because of the girls charging money for their nudes.

Do you have any numbers to back this up with ? I think you are likely right but if there is any data on this then I would love to see it.

I remember seeing an article where the Patreon CEO said it wasn't sustainable a year or so ago, was this after they started banning nudes ?

Also I recall that Sam Harris, Jordan Peterson and others left the platform due to censorship, which I believe happened around the same time as the CEO statement.