How do you guarantee that data persists? In a corporate model of social media i.e. YouTube, the revenue generated is enough to operate and maintain huge data centers with employees who work on data compression, database models, etc. Videos with little attention posted 15 years ago are still online because of this fact.
Nostr is operated and maintained by the contributors who provide relays, which store an arbitrary set of data so that users can fetch posts from their followed accounts. Though, where is a post from 15 years ago (nostr isn’t that old, but let’s imagine) stored? I’d see this as a huge flaw in a framework intended for freedom of speech, since a user might not be held accountable for a post that was lost with time. This would not happen with a platform like X. I am in support of nostr, but how are these problems being addressed?
If a solution were established for this issue, that would indirectly solve an issue of content recommendation. Algorithms can’t be established without a basis of the users prior history. If a user owned their historical data, then they would also be in a position of power to choose which algorithm they want to use for content recommendation, since clients on nostr are interoperable and data persists across platforms. This, in my opinion, would immediately put nostr clients ahead of any other media platform.