*Sorta. ICANN has a special relationship with ccTLDs. Registries of gtlds can’t put an A record at the root tld.

Don’t forget countries. A few, I don’t have a list, but including .ai, .pn, are in full control of their domains and do it all on their own infra.

what about cross-posting content from Lemmy/kbin to Reddit? Showing that, not only in theory, but in practice, you can switch?

The stuff listed in OP doesn’t really seem like much concern. “What you put on the internet is there forever!” is completely true, and things like this should only make it more concrete that you can’t rely on your service provider to delete information somebody else already archived.
With that being said, default privacy settings - at least on Kbin - seem pretty bad.

i think the shitcoin trend and NFT shit is over, but crypto as a technology and cryptocurrency certainly isn’t. I don’t see BTC, ETH, XMR dying aaanytime soon, especially the former and the latter - they’re gold standard on the net already. Overengineered crypto like ETH seems to be less popular now.