"Bear in mind that Wikipedia's policy is use "official" sources when in doubt. According to Wikipedia, Assange is a criminal. Snowden is a traitor."

Not really.

They use credible sources as far as they can find them, their numbers on Belarus look like what the international press is reporting.

Wikipedia doesn't 'think' that Assange or Snowden are anything. They have long articles detailing their history, and possibly what some others might think.