- Whistleblowers are doing society a favour when they expose government or corporate wrongdoing, not when they're revealing other confidential information. (For example, if my employer covered up an environmental incident, I would be protected if I blew the whistle. But if I revealed confidential financial data or details of their proprietary technology, I could be fired and maybe even sued.) These diplomatic cables that Wikileaks revealed are mostly confidential conversations between officials, not evidence of wrongdoing.
- In the past, Wikileaks has exposed some evidence of government wrongdoing, such as a video of American soldiers killing Iraqi civilians and journalists.
- When the media publishes confidential information, it's normally the source that gets punished (if the source can be found), not the media outlet.
Mastercard, Visa, and Paypal are for-profit corporations that collectively control a very large portion of the world's electronic financial transactions. I am concerned about the level of control that Mastercard and Visa in particular have over the world's financial transactions, but that's a topic for another day. But when most of your communication is online and your potential income comes from donations from around the world, you're crippled if these three companies refuse to deal with you. These companies shouldn't be allowed to cut organizations off like this without due process.
(Sources: I got some information here from Wikipedia.)