It’s true that if everyone else is using some specific format or nip for ratings, then it’s in my interest as a dev to adopt the same system. This is how we avoid a Tower of Babel type situation.

But it will never boil all the way down to a single global format that we are all forced to use. There will always be multiple formats. If we know how to synthesize multiple formats from multiple data sources together to answer a single question, like what’s does my WoT put at the top of my rec list, that’s a good thing.

Problem: how does my WoT rank widgets from top to bottom?

Data source 1: vendor follows, mutes, zaps 
Data source 2: 5 star ratings of the widget from store A
Data source 3: emoji reactions on adverts of that product on a nostr classified ads client 

And I’m sure we can think of MANY more data sources than those 3.