Is there a good article -- does even anyone know? -- on how did Wikileaks turn from a whistleblower into a mouthpiece of the Kremlin? Edit: some examples: http://www.slate.com/articles/news_and_politics/war_stories/... https://www.washingtonpost.com/blogs/erik-wemple/wp/2017/03/...
You know, I harbour a lot of anti-American sentiment too (US government that is, the American people seem mostly fine) and I frequently speak up about it. Does that make me a Russian agent/mouthpiece/troll too?
Conduct and intent have a lot to do with it. Do you use your anti-American sentiment to push a pro-Russian agenda? Do you use inflammatory rhetoric to derail anti-Russian conversations? Do you find yourself repeating pro-Russian propaganda? When you criticize America, is your intent to widen political divides and pit Americans against each other?
If you answered yes to most of the above, it is time to pause and reflect.
The important thing to understand here is that one does not have to be a foreign agent or in the payroll of a foreign government to spread their propaganda. Many people become mouthpieces of various governments unwittingly, usually over a period of time. Then when someone points out their obvious bias, they get genuinely offended.