@Rabble (ex-early twitter legend) said on last Nostrovia that 40% of outbound links on Twitter is to Only Fans and 80% of searches on Twitter is for porn. The fact that that could be happening on a website I was on every day without me seeing any of it accidentally shows some great engineering decisions.
Relays should make it known what content they accept and what they don't accept and make the statements clear. Soon, Nostr will have similar 'NSFW' and 'SFW' areas.
Different relays will choose different moderation policies. The free market loves variety. Perhaps different monetization strategies will flourish simultaneously as well.