Yeah it needs to have some kind of Blockchain really, user accounts need to be distributed so you can move between them all and not lose your account.
I picked LW because it was big, I assumed if it was big it was more likely to last and must be big for a reason... I now see the incentive of smaller instances and it makes it difficult to commit to this site not knowing the future of each instance and therefore the communities that go with them, plus on top of this you can have bad instance admins, and all the defederation rubbish.
Do you realise how ridiculously expensive it is for Google to store all these videos? To be honest I'm surprised how long they've survived, without charging.
You essentially get unlimited free video storage using YouTube, yes I suspect 90% of it is crap. But it's amazing that Google still offer that. Running YouTube must be significantly more expensive than any other similar services like Netflix, YouTube, Instagram etc.