Yeah, wot is basically the same as any other content-related algorithm. Different algorithms will take different things into account, and different people will choose different algorithms, maybe by use case. That doesn't mean having data structures that are explicitly wot-focused are a bad thing, they can be a useful part of the solution. But I'm with you — if someone kind 7's all of someone's notes, that's a strong signal, and doesn't require the user to maintain anything to get the benefits. 

 Some algos will use only proxy indicators of trust, others will use only explicit trust attestations, and others will use both. 

 Absolutely, well said. If people want to work on wot-focused explicit attestations, all the best. My gut feeling tells me it's not worth putting much energy in that. I might be wrong