Earlier quoted context omitted.
They needed to beef up their revenue that's why. Facebook does the same but there is a limit on how many ads you can stuff without degrading UX. Too many ads and frustration of users rises and they leave. Luckily on YouTube you can purchase YouTube Premium and use it ad-free.
Isnt YouTube premium like 10 bucks a month?
Re: Ask HN: Did YouTube start recommending more short videos to you out of nowhere?
#21So what?