This change is not likely to increase that behaviour. It is meant to shift behaviour.
Discussion
psychological warfare
Yeah because spammers are going to pay MORE to stuff their spam in the OP_RETURN You must really be a charlatan to think spammers will pay more because they care are about the network.
I don't think they will either if the choice is there. Some want/have to embed their data in non-discounted outputs. I'd rather have them put it into a OP_RETURN than in some fake key output.
Sorry I shouldn’t check Nostr when I wake up before I drink my coffee, I clearly misread your comment!