It's NIP-85, it's not personalized by service provider based. Hopefully if there is a provider or specification for getting from user perspective, I'll add that.
Discussion
NIP-85 allows scores to be personalized. If Alice is on nostr:npub16x7nxvehx0wvgy0sa6ynkw9c2ghuph3z0ll5t8veq3xwm8n9tqds6ka44x, you check to see whether she’s authored a kind 10040 note. If so, it tells you how to find 30382 events with metrics personalized to her perspective (by filtering on the author she trusts to publish her metrics). If she hasn’t authored 10040, you can use a default perspective, which could be your own user account, or could be nostr:npub16x7nxvehx0wvgy0sa6ynkw9c2ghuph3z0ll5t8veq3xwm8n9tqds6ka44x's npub. To set up default Trusted Assertions, go to straycat.brainstorm.social, sign in with nostr:npub16x7nxvehx0wvgy0sa6ynkw9c2ghuph3z0ll5t8veq3xwm8n9tqds6ka44x, sign up, and click yes to activate Trusted Assertions, which broadcasts your 10040 event. I’ll let you know once all the 30382 events are published.
Thanks for explaining. Right now it's just a local setting (the relay), I will write an 10040 later on, but I doubt I'll support full customizability to it, especially the specification allows multiple relays of same rank type. I don't know what users with multiple relays would expect, if all ranks should be shown individually for reach relay, or if the first one should be picked and used.