I know someone worked for reddit for a while last year (they don't anymore because they hated every second of it) and from what I understand the engineering teams there are a nightmare of groups that don't talk to each other, constantly write the same code in completely different ways, have no common style and just shoehorn in whatever they want. Everything breaks pretty much all the time.
All of that is aside from the fact that the workforce acted like a bunch of teens that just arrived at college and are going crazy due to lack of supervision (Every project had to be tiptoed around because of complicated interpersonal relationships).
Not to mention the CEO offering drugs to people in his cabin at camp Reddit (the yearly retreat they do)
Oh, and the fact that the platform itself hosts tons of alt-right, incel, racist, sexist, and violent content.
Apparently last year Steve (ceo) told everyone to enact a hiring freeze while he figures some stuff out, and then after a month or two, when managers informed him of all the candidates they passed up, Steve freaks out and tells them that they should have hired them. During the hiring freeze. That he enacted.
The app also sucks. They try to make everything play embedded, so that if you want to share it, you pretty much have to share the reddit link, because the link to the actual content is hidden. That's bad enough but the embedded stuff also barely works. More often than not I have to go directly to the source for an embedded video or giphycat thing to play.
Every story I've heard about reddit sounds like a nightmare. It really sucks that it's become the defacto repository for so many hobbies.