So, the one way to prevent one popular client from pressuring every other client development team to adopt their non-feature and end up with it as a NIP, like some sort of feature-virus, is for npubs who use those clients to scream their head off on Nostr that

WE DO NOT WANT THAT, DO NOT BUILD THAT. THAT IS A BUG, NOT A FEATURE.

Otherwise, you're going to get it, good and hard.