The RES (Reddit Enhancement Suite) browser extension indirectly does this for me since it tracks the lifetime number of upvotes I give other users. So when I stumble upon a thread with a user with like +40 I know "This is someone whom I've repeatedly found to have good takes" (depending on the context).

It's subjective of course but at least it's transparently so.

I just think it's neat that it's kinda sorta a loose proxy for what you're talking about but done in arguably the simplest way possible.