They call themselves the darkest part of the internet

Somewhat ironic, given that they're a haven for white supremacists. :)

4chan used the "internet hate machine" meme for quite some time.

https://knowyourmeme.com/memes/internet-hate-machine?full=1

This is why Facebook host their own servers... well not the only reason, but you could easily make the argument that Facebook is an "Internet hate forum" and should be shut down for failing to police their site.

Not even hosting your own servers would do much to prevent a site shutdown since the domain can also be censored by the company that owns the TLD.

Facebook takes their hosting to a whole new level by being part of the ICANN as a domain registrar which their domains are registered under themselves, making it close to impossible to be shutdown on the domain level.

No, not really, no. Facebook is a media company that has half-assed moderation because it's not profitable to them to be any better about it, and is mostly old ladies posting ancient memes and chain letters.

But it's not just half-assed is it, it's misguide, misleading and misdirected. Facebook will actively block a post selling baby items from a "non-smoking home" because their shitty A.I. and $2 an hour moderators can tell that the post isn't selling tobacco or animals. At the same time they can't find an entire group applauding the death of police officers or groups encouraging violent racism.

And those last two, those aren't old ladies, those a shit people who aren't technically literate enough to find 8chan.

Just imagine how hard it would be for Facebook to exist if they didn't host their own servers. They would have to be under constant threats of being kicked off from whatever ISP they used because of the content users submit. And also quite obviously the press would be yelling at ISPs for hosting them, same they are doing with 8chan

Surely Facebook still has ISPs they use and all sorts of companies they rely on for services.

They’re just too big and too popular to fail.