I’d love to understand the real world use cases or user stories you are looking to add or improve support for.

It is better searchability?

It is enabling more explicit content on Nostr without impacting the current/future user base negatively?

Is it for a specific application, like only fans, or an adult Nostr network that’s opt-in? Does it have to use kind 1 short notes - or can it be a new kind?

Is it how to support adult businesses on Nostr, and benefit from lightning or tipping?

Is it to improve the client app filtering capabilities? What problem exists today specifically? What does having labels that are longer than most short note content to begin solve? How does the UX even work - especially mobile?

Global feeds will effectively become “combination of my relays feed” soon as the network splinters and grows 100X. If you connect to relays with content you don’t like (media or just personalities), try another relay and disconnect from the undesirable one. If you want explicit content, start a relay that specialises in it and ask people to join.

I think a more targeted problem statement,and an outcome you’d like to work toward is a good next step.