Background:

• In Mastodon/Lemmy/Kbin/ActivityPub, your identity is tied to your instance. So if your instance shuts down, you lose all your followers/followees/subscriptions/DMs
• In Nostr, your identity is your public key so your relay can shut down and everything is fine since your identity isn’t tied to your relay/instance.
• BlueSky’s proposed solution to this is to have your username be yourname@somedomainyouown.com. Which requires buying a domain name, which are limited resources, costs >$10 per year, and requires manually configuring DNS records which is not fun.

Tying it to domains is very cool actually imo.

Also if you don’t like it, you’re using the meme template wrong. The blue guy usually makes the only reasonable suggestion.