Not sure if you’ve ever heard of funhaus but I tend to go back and rewatch their earlier videos all the time. There was a YouTube user, Armitage, who tried to archive all their videos, but their page has since been deleted, and I can only surmise he was banned.
It’s also important to remember too that while the vast majority of Lemmy users by far are Reddit migrants, just because you’ve seen something before doesn’t mean someone else has. Any bit of content can make someone part of the lucky 10000:
It stands for Share ID and it’s a method of tracking who is sharing videos. Always strip those tracking segments from URLs when you share things