Totally get your point between individual skill / trust and the agency level. In my little country we had a recent event where a governement agency, pretty much failing for the last 20 years, but especially pronounced the last 5 years suddenly came clear in a PR-move. What? Turns out a newspaper had succeeded in a neatly tuned FOIA-request (local equivalent) and forced their hand. At the same moment a vote was underway for extra budget, looking to fail. So the sudden transparency was really pretty ugly.

Surrounding collusion. I can’t tell you what to believe, but keep in mind that there are a lot of reasons why correlated moves in prices can occur without communication. Lots literature in industrial organization (the field of why markets have particular ordening and how actors behave on markets) on signaling. A though experiment might be the games of poker versus bridge on explicit vs implicit signaling / coordination.