i think nostr devs should stay frugal for a while simply because there are not many users. the controlled opposition is uniting and this means people wont flock to nostr. of course i want to believe that they are uniting because of nostr but this may be a biased over thinking. freemium model may work. the reason i don't do freemium is because i like my freedom and don't want to deal with people who pay and things going wrong and then trying to refund etc. right now it is best effort and it is working fine. but if i am killing the economy by providing the relays for free, i may change the model and do some coding to add premium users, if a lot of minds think there should be an economy forming already.