The worst part is on a technical level it works fine. It is intentionally crippled for business reasons. They have also been trying to optimise for consuming as

The worst part is on a technical level it works fine. It is intentionally crippled for business reasons. They have also been trying to optimise for consuming as much content as fast and for as long as possible. Showing full comment threads and then ending the page is a prompt for someone to finish reading and turn off their phone while if you can show them a never ending stream of crap they will view for longer and see more adverts.