I don't have the vitriol towards the devs you do, but I will admit it's a bit disheartening that some of the greatest minds of our time are figuring out ways to trick your brain into clicking advertisements.
"...education sites are competing with very powerful algorithms that are designed to keep users watching video after video. If youtube starts encouraging users to do a few Khan Academy problems before watching the next video, I will consider our project, DnsLearning.org, a total success"