Isaac was an original trustworthy-ish user (the precursor to moderator), but lost his badge following the Whales v. Minnows drama in March. He was just reinstated as moderator, but has a pattern of conflict with other users. At the very least, he blocks a lot of people.

He's also the #2 market creator on the leaderboard (this was partially due to some market manipulation awhile ago, but might also be his true rank) and the creator of a popular Manifold search tool. My personal opinion is that he's added a lot of value to the Manifold community, but also a fair amount of controversy.

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.