Users should keep a local copy of their public notes.
For example, by paying 5 sats, a relay would commit to storing it for one year. If after one year, the user deems the note to be very valuable, they can resend it, essentially renewing it. Notes that the user considers not valuable do not need to be resent. nostr:note1sz3dl303ttzhlef8fuyhsyhjh8e288ghzsjhsd9ldq55g7qqnjwq7zghft
"pay per use" best
retention really not matters - 99% people wont remember
5% will save in own local DB
Users should have a reasonable expectation of how long their notes will be stored by the relay, rather than expecting permanent storage.
yes config in secs in many relay codes - default is 3yrs IDK how
6months to 1yrs is reasonable
1 Year = 31,556,952 Seconds or /2
All roads lead to p2p.
