WILX-10's source agreed to disclose the information as long as he/she remains anonymous. The person is currently at risk of a $5 million penalty for releasing the information.
It's unfortunate the extra didn't have the discipline or respect for the film he's working on to hold his tongue, but how responsible is ILX-10 or for that matter IGN for publishing this?
Clearly, a bit of film gossip isn't as damaging as the hacking and release of a celebrity's personal pictures, but it's hardly as relevant to the public as WikiLeaks (or Shield/Hydra's info dump which copied it).
Integrity, folks - of the system, of the product, and of self. It kinda matters.