It's not so much a different definition of trust so much as what we are trusting them for. By following an npub, you indicate that you trust it will be used to post content that is of interest to you. If they start posting a bunch of content that you don't care about in the slightest, that trust is broken and you remove them from your follow list, or even go so far as to mute them. Muting is even higher signal, because it indicates that you trust a certain npub will post nothing that is of interest to you, to the point that you don't ever want to see what they have to say.

What about that verification site. It gives high scores based on protocol and not actual trust. Nostr talks about Trust. It involves much more than an on site calculations that person is acquiring for a very long time. Ill just drop this i can see that Trust is something else online. But when people tell me dont trust verify on the site... I went there and I saw how much trust did some accounts accumulated on Nostr being complete bogus and fake. So trust is you and you can only trust yourself here there is nothing to verify.