This is quite deep.
We got annoyed with xitter because they cancelled our accounts, deleting everything in one go, when we weren't prepared with a back up. We also got annoyed with the hall monitors on xitter, because they started taking screenshots of our content 'as evidence' or got our profiles onto the radar of the wayback machine.
Here we don't have algorithms for engagement farming, we enjoy self-expression, and occasionally we banter with others of like mind. Most of our notes are shitposts and chatter, like writing little notes in class and passing them round. If there's an occasional deep thought, we can capture this and broadcast it elsewhere, in a seemingly more permanent format, for example long form.
I'd like to think that relays or other servers are motivated to archive long form, and don't easily forget or lose these more intentional works during the nukenings, and that may become the case. Other protocols like IPFS were all about this, decentralised storage of files and other content for the long term.
But what are these relays anyway? Services running in the cloud, ultimately managed by a few 'centralized' providers (e.g. cloudflare) that could flush the content or make it disappear. Yes, we hope there are copies out there that would resurface, but honestly that's needle in a haystack if you're not keeping a record of the ID for every note you send... and you don't have your own back up.
That's my amateur perspective, I haven't started messing around with relays yet. But in the end, if you want something archiving, and you think it's worthwhile the effort of archiving it for posterity, you'd best be doing it yourself.
Otherwise, it's okay that stuff is lost and forgotten, it's actually really okay... we have a right to be forgotten, and in that forgetting, we have room to grow.
nostr:nevent1qvzqqqqqqypzqhjlc9p5ey5teh96d7qpskw4ywp5zzfjjxvql5mwxwm5zcun6k3vqyf8wumn8ghj7mn0wd68ytnvw5hxkef0qythwumn8ghj7un9d3shjtnswf5k6ctv9ehx2ap0qqsxahv8dqwt34awja5fvm87fhcfwg5j3zd3dey09z96vp4nehz9zsq6ln39t