I respect your opinion, but I disagree. I much prefer an over the shoulder third person perspective to being a floating set of arms. Being able to see my character interact physically with the world and move around in it is more immersive to me, personally.

In case you’re actually serious, LMG is Linus Media Group, the company over LTT.

What could a single user instance possibly do to be defederated on a massive scale? And at that point, why not simply join another instance?

You would, but that’s where your firewall and SSL certificates come into play. I use a reverse proxy and forward port 80/443 directly to it. Everything I host resolves to a CNAME in Cloudflare and my proxy responds with a 404 to any unknown requests.

Yes, but by proxying your traffic via cloudflare your domain will point to their IP instead of yours directly.