Some people use FB like phpBB, despite the massive shit of a UI. Maybe it's because reading comments don't earn them ad-revenue? "Quick, annoy the user so they'

Some people use FB like phpBB, despite the massive shit of a UI. Maybe it's because reading comments don't earn them ad-revenue? "Quick, annoy the user so they'll move away!". Maybe if they replaced every 5th comment with an ad (like how every 5th or so post/story/reel on Instagram is an ad).