---are running strongly negative toward ABIM. Common concerns expressed in the comments:
Thousands of ABIM diplomats now have their records besmirched by a letter in their ABIM file just for attending the course (some are considering legal action).
The action is mercenary on the part of ABIM.
The idea that exam questions are proprietary secrets is unreasonable.
The ABIM, with a conflicting interest in ACP board review products, is trying to put private review companies out of business (they have a suit pending against one other).