any system/protocol level ''guarantees'' irt data availability are fake anyway. The bottom-line, is, and always will be, a matter of bits available on some drive that is connected to the internet. If you can tell me about/point me towards any other existing reasonably mature network/protocol that conveniently already runs on indexing by pubkeys and hashes, please, show me; But I for one, am more than fine sending a client to task to look around if any keypair by chance has some (encrypted) descriptor data stored in Nostr events on some relay somewhere, regardless if the relayhints have gone stale or not. The mistake in thinking is a confusion of two problems: Data availability, for which Nostr gives you have all the potential solutions imaginable irt redundancy, geographical distribution and everything in between self-hosting and using a large variety of third parties. What you seem to miss is this other problem: Knowing what it even is you are looking for. So again, what other system out there allows for a simply query based on a public key that has a chance of giving me what i seek?