Have you ever been in a typical youtube comments section? Because that's where I lost my faith in humanity. Seriously, on some channels you can't even scroll one inch down and you will see people calling each other cunts, faggots, niggers and even hitlers, solely because they can do so. So sad and disillusioning to see how low many people sink when they have the opportunity to insult people without consequences.
Youtube comments can be really memey, too. Go onto a popular youtuber's video, take for example Game Grumps, and you'll find people constantly spewing outdated and overused memes in the comments with thousands of likes. I guarantee you you will never be able to find any sort of quality discussion on one of their videos, period. Of course, then there's the incredibly unhinged and edgy people who spew those insults. Stuff like that is why I avoid any popular youtubers.