Nah, just delete whenever you care/need to, doesn't have to all be a business and push pressure on people to pay especially at this point in our growth (or lack thereof)
Discussion
I believe that lack of long term support for relays is damaging Nostr more than helping. Relays that subsidize the network for free are just damaging growth opportunities.
But the most important part is that users don't really expect their posts to be saved much more than 90 days. If that is the case, I do think we should meet users where they are at and simplify operations.