The actual content of the post that appeared to merit the shadowban is as follows:
Buddy Fletcher, husband of Reddit CEO Ellen Pao, is being described as being the operator of Ponzi scheme
~144 million dollars of a pension fund was lost
Ellen Pao is now accused of frivolous lawsuits to try and stay afloat and some other shit. Seeing as she is a CEO of a large company and has a fraudster for a husband I think it's safe to say we have a textbook ASPD/Sociopath on our hands
But we have no idea if it was "just criticism", or if it was worse.