FOAF - Friend of a Friend referring "system" sounds like a good idea nostr:nprofile1qqsrc2zasv9lgvcnttnpcusmw5xwzxh9ktscwufd0gt347numfjfu5qpz3mhxue69uhhyetvv9ujuerpd46hxtnfduq3vamnwvaz7tmjv4kxz7fwdehhxarj9e3xzmnyqyxhwumn8ghj7mn0wvhxcmmvk5cd87
Discussion
I believe FOAF has been a term in semantic web for a long time. Not having seen much uptake, it (the idea, not the defined ontology) can get a new life on Nostr.
And I wouldn't be surprised if existing social Nostr apps don't already work using graphs where an unknown friend of a friend is more likely to get a boost than a bot.
I'm not up2date on Nostr tech, but if it's not already been worked on, it will happen, I'm sure.