The way it works - cuz i investigated...
There are more crappy folks on the internet than you can shake a stick at.
Some work for the mouse is various "front end" jobs and they report CMs they feel are saying bad things, etc. Like stool pigeons and they expect to be rewarded for it - though often the company realizes it's crap and ignore. Some areas really can't tell what is "confidential" information and so the leader of a specific area has to deal with it. Most anything that folks would post to the boards is considered public information - yes the systems say "confidential" but are also the backbone of the service information systems.
Important stuff is labeled "reactive only" or "unpublished information" and "do not discuss."
The other group is whiney "fans" of Disney who feel they are some sort of police force against the CM's. They feel CM's in their free time owe them politeness. Not true. If in my free time, you're being a jerk, I can call you a jerk. If i went and said "I'm from Disney and we think you're a jerk" that'd be another story.
A certain "alien versus predator" owner of a website is the epitome of this delluded mindset.
Those also are often ignored by Disney in real terms, but forwarded to an area "just incase" and if anything a slap on the wrist is given. Occasionally you get a manager who for some reason beleives CM's have to be nice in their free time - often with a stick up their bum who just transfered from the Disney store or backstage clerical or some other non-guest area - who makes a fuss of it but then gets their tooshy chewed up by the union.
Disney does have folks who are reading for certain info. In the past, posting info about discounts at hotels prior to the release date was a big one.