Why don't relays require proof of work to post content? Seems logical.
Discussion
I'm sure there's already a nip for that?
Fiatjaf has you covered https://labour.fiatjaf.com/
you could steelman that some spammer with a GPU will have an order of magnitude better hashrate by cost/compute than could be achieved with normal consumer hardware, which negates the benefit of PoW. i still believe it’s worth it tho
IMO even at two orders of magnitude it would still be quite effective. A few sats per post would also achieve the same thing