I can't speak for admins, but I would imagine that they would consider a fair application of the T.O.S to be the primary job of the moderators.
They need a balanced information feed from moderators
There is absolutely no requirement on the part of the moderators to provide information regarding the company (either good or bad) and in fact, what would qualify them to do so in the first place? Someone depending on board moderators to provide them with balanced due diligence has no business sticking money into the stock market anyway.