Yeah, follow doesn't necessarily mean friend. Also doesn't mean trusted automatically.
Discussion
I could imagine an added level of trust which provides a form of vouching for someone's character.
That could be a new nip, or maybe just a seperate npub. Time will tell.
Trust can be objectively derived and measured from credit relationships.
Agreed, but I am having a hard time imagining how this could be measured without a loss of privacy
It is privacy maximised, built on Nostr and encrypted so only the parties involved can find and, if found, read.
In incognito mode (a bearer ebill) only the payer's business name is known, every other party (payee and subsequent endorsees) can be anon if desired, needs just an npub to control the ebill.