How do bait AI image Facebook pages work?

Recently I've joined a Facebook Group that makes fun of AI generated images, specifically these created to fish for likes on Facebook. I discovered there is a variety of themes the pages posting these images have, e.g.: Christianity and Jesus, war veterans, old people with cakes asking people to wish them happy birthday, etc. Some of these posts gather tens of thousands of likes and comments, partly from bots and accounts that have been taken over, but partly from legit people, thinking that they see a real cake or a kid making a sculpture.

This made me wonder how are these pages programmed. Obviously the images are generated and posted automatically, and prompts for image generation are probably also generated via AI like ChatGPT and I'm dying to know how exactly. What's weird is, a page like that can post 30 posts of the optical illusion of Jesus made from the forest trees, but then completely change style or theme. Sometimes these themes end up very bizarre, like Jesus accompanied by Asian cabin crew, or being "sculpted" from vegetables and fruit by some child in Africa. There seems to be some feedback in prompt generation that looks at already generated images and varies them subtly. I also feel like these bot pages can change the theme completely, as if controlled centrally.

I understand this is quite an esoteric topic but I'm wondering if you have any ideas on how it works. Not posting the links to the pages as I don't know if it's allowed.