Yes, I agree. Original content requires no policing whatsoever. If they are ripping people off, technically, that's not content policing; that's just addressing a thief accordingly.

Many of popular meme production sites pay royalties and make money utilizing ads to pay for it. The content is then shared freely, and the producers of those images are okay with that. Some of the folks attempting to monetize those images will eventually be getting a nasty wake up call by a different type of content police. Oh well. That's their problem!