One “growth hack” we could try on nostr if technically possible is to show who invited the npub on their profile. 

Clubhouse did this and I thought it was kind of neat. People competed by who was invited by the biggest names and it was fun to see who recommended who. 

 It could mean also you are backing that person. Something like signing a key in PGP. 

 That and Clubhouse was invite only with quite a few billionaires and celebrities. May be too late for nostr to change. 

 Don’t need to change. Won’t get the same fomo of course, but could still motivate some gamified behavior