As I said, when you realize what is behind this, it is still a bad idea. They basically don't care if is it a third party content or not. It is about advertisement and the will of big financial companies. They simply don't want to be associated with a specific type of content. Do they care if it is a "third party content"? No. They see content they don't like, point finger and say - ban this, we don't like it. You start arguing - it is not my content, it is third party. Does not matter. Patreon is more concerned with keeping their advertisements and structural support than with keeping you on the platform. Patreon will change it's rules from one day to another and enforce it backwards, if it wills. It did it before.