Wait this is something I just realized, thanks!
there is no saving mechanism on any social media except for nostr. If you're on twitter, your "achievements" are on the sole responsibility of twitter which puts a great ✖️ in front of your page ;) so if they decide to delete your account, all your achievements are gone. No single way that you can get them back. With nostr you have the ability to "save your achievements" independently.
Someone please create good analogies for orangepilling, about bitcoin saving compared to banks and twitter saving compared to nostr