NIP-26 is a failed promise that can't be resolved -- don't look there for answers, it has none.

So yes,. overlap on use cases it's good, but its solutions are bad (specially because they look initially look sound).

And yes, just publish your thoughts here you'll get more feedback than you wanted to receive 😂

I often write a NIP in very draft form (mostly just the data model and one or two paragraphs explaining what's not readily apparent on wikifreedia.xyz and then publish it here.