they clearly trust him enough to use his forum.
No; there is no competitive alternative.
IMO, the message leaked because of the power they stand to lose.
I have no power, nor is anyone obliged to share any PM with me nor would I be able to know/prove that they got it. Weak-play; but he got beaten at his own game-theory.

The small wins matter for the greater good.
There is no requirement of anything when leaving red-trust now: No risked amount, no scamming, heck probably not even outright lying.