Not sure about the trust part. Ideally, you can evaluate the change on its own.
In my experience, I immediately know whether I want to close or merge a PR within a few seconds, and the hard part is writing the response to close it such that they don't come back again with the same stuff.
(I review a lot of PRs for openpilot - https://github.com/commaai/openpilot)
Even if I trust you, I still need to review your work before merging it.
Good people still make mistakes.
a new person with a big idea on the slightly wrong (but reasonable) channel would have more work in verification.