At the moment, I'm the only current or former member of Proof School to have the "Trustworthy. ish." checkmark badge. It's currently given to a hardcoded list of 22 users, and I got it by bribing 

 M$1. It's mostly meaningless, but does allow me to put other people's markets in groups.

If and when I learn of another Proofnik who has received this badge, I will check all other Proofniks to see if they have the badge. If no one else has it, I will resolve to that Proofnik; otherwise, I will resolve in equal percentages to all trustworthy-ish Proofniks besides me. 

(Clarification: If one of them is a Proofnik who's not an answer in the market, I will add them with a M$1 bet first.)

Note: I will resolve to the Proofnik's USERNAME (what you see when you @ them), not their real name or display name. If they change their username, I will resolve to whichever username they had when they were first added as an answer to this market. 

If the trustworthy-ish badge is abolished, or Manifold announces a policy which means that no other Proofniks can ever get this badge, I will resolve N/A. Otherwise, I will extend the close date until another Proofnik is trustworthy-ish.

Note that "halfaswiftie" is the previous name of 

General policy for my markets: In the rare event of a conflict between my resolution criteria and the agreed-upon common-sense spirit of the market, I may resolve it according to the market's spirit or N/A, probably after discussion.