I've said it before, I'll say it again:
If you want your content to remain IN EXISTENCE, make sure you have local copies. I don't care how good you think a host is: they can and will delete it when they chance policies or go out of business or whatever. https://twitter.com/summoningsalt/status/1250547393956700162

and for the second-best to having it locally, upload it to http://archive.org  too.

Yeah, you might get more views or ad revenue from having it up on twitch or youtube or whatever, but the copy on http://archive.org  WILL STILL BE THERE when shit goes down.

Here's the thread back from 2018 where I was ranting about this, btw: https://twitter.com/Foone/status/1040661735617716224

and BTW, I'm not saying you should just go uploading other people's content willy-nilly, but with tools like youtube-dl combined with plentiful hard drive space, there's no reason you have to limit your local copies to YOUR content.

is there a youtuber you love and watch and rewatch all the time?
point youtube-dl at their channel URL and it'll download all their videos. run it again a month later and it'll only download the new videos.

the worst thing that'll happen is you'll have to delete them later if you need the space.

but maybe they go offline for whatever reason... and now you have one of the only copies that exist.

and like I say in the thread, that happens all the time.
Someone gets too many copyright strikes and the platform kicks them off, taking all their videos with them.
The platform changes policies: now all the old videos are gone.
the platform just DIES, taking the content with it

None of these are hypothetical paranoid worries, they've all happened.

Rhys had a couple THOUSAND videos go poof because one japanese channel got mad they were uploading commercials from the 70s.

There's endless Tumblr content that's gone now, because it turns out the person who posted them had reblogged a couple nudes back in 2009 and now their whole blog is marked adult and is no longer accessible.

And the rise of the "reviewer" style of video-making, in the style of Nostalgia Critic, Atop the Fourth Wall, Spoony Experiment, SF Debris, etc?
They were big into blip .tv, which allowed them to upload longer videos than youtube and didn't worry so much about DMCA.

Which was great, but Maker bought them in 2013, and Disney bought maker in 2014, and in 2015 Disney decided they didn't want Blip anymore and turned it off.

I'm just saying: don't let the only copy of your stuff be on a service you're not paying for.

or even a service you ARE paying for, really: they can still change policy or go out of business.

a while back I was helping someone run an imageboard, and it occasionally got DMCA request and we handled them rather quickly.
But one weekend someone got mad and instead of sending us DMCA requests... they sent them to our host, who got mad they were being bothered by it

so on Monday we not only have a pile of DMCA requests to remove a bunch of content one of our users had posted, we now had a letter from our host who we'd been paying for years, saying "yeah you're getting too many DMCA requests: find another webhost, now."

We had local backups, and the host didn't immediately kill our access so we were able to make sure we could update them before the shutdown... But the host just as easily could have been like "yeah, we think your content violated our TOS, so it's gone."

so our local backups would have been the only way the site could survive. Thank goodness we had them, eh?

and speaking of backups, I don't want it to sound like I'm being overly harsh against cloud-based storage:
Cloud-based storage is great, really.
It's just that it shouldn't be your ONLY storage for things that are important, and that goes double for storage you're not paying for

keeping a copy of your important files on dropbox or google drive: good!
keeping a backup on a paid backup service like backblaze: great!
keeping a local backup: great!
keeping backups on both paid backup services and locally: THE BEST

then you're fine if your free host goes away, your paid backup service goes away, or your home system goes away.

full disclosure:
I HAVE WORKED FOR BACKBLAZE IN THE PAST
they are not paying me to suggest you use them.
I'm sure there are other paid backup solutions that are also good, backblaze is just the one I'm familiar with.