Web of Trust Relay:

This relay looks at who you follow, and who they follow, and saves every note in this trust network automatically.

I added it as my only relay in amethyst and spam is now completely gone.

Anyone in my web of trust can use my relay:

wss://wot.utxo.one

But the much better solution for nostr is to run your own WoT relay

https://github.com/bitvora/wot-relay

ps I'm faster than @fiatjaf