Sure. That’s my point. Kind1 is general use short message content. It’s not paywalls, galleries, long form movies, live video chat, a chat room, etc.
If you want to funnel specific use content, perhaps with paywalls and other aspects, use a different kind.
Or, as I suggested, host a purpose specific relay for the content. People opt-in then by enabling that relay - even for kind1.
They 99% of population do not want explicit and general content mixed. You can try, but I expect it will fail spectacularly and will result in endless reporting or user bans from relays.
Another idea you could suggest is a relay metadata flag for explicit content - then clients can know connecting to that relay is going to expose clients to that kind of content.
I’ve suggested a lot of ideas for you. All are valid for the network to support in the long term, and are solid an alternative to some formal content rating system.
I still don’t understand your proposed problem statement or desired outcome - except flood kind 1 today with mixed general and explicit content because you think it has to be in a single stream - and that makes no sense.