What's behind the scorn for the Wall Street protests?

It's unsurprising that establishment media outlets have been condescending, dismissive and scornful of the ongoing protests on Wall Street. Any entity that declares itself an adversary of prevailing institutional power is going to be viewed with hostility by establishment-serving institutions and their loyalists. That's just the nature of protests that take place outside approved channels, an inevitable by-product of disruptive dissent: those who are most vested in safeguarding and legitimizing establishment prerogatives (which, by definition, includes establishment media outlets) are going to be hostile to those challenges.