Manning, Assange, and Snowden risked their very lives to reveal the government's illegal and Unconstitutional violations of Americans basic rights.<quoted text>I suspect that there are many "kinds" of people who "push those silly judgment icons" as their only response to what they consider an inane post not worthy of reply. I also suspect there are people who post negative judgments based solely on their dislike for the poster irrespective of what was posted. It is very possible that those who provide negative judgments are jealous of the poster's ability to articulate a thought, or angery because their foolishness has been demonstrated via cut and paste, or simply fed up with being constantly reminded that they voted and supported such an obvious liar.
Then, there is Fox News, you know, the network that never dared to question or criticize the Dear Leader, Bush.
You are right, the term hero is over used, or maybe it's just a matter of being told who the heroes are, as if we couldn't see the heroism in others for ourselves. Giving one's life for another is a selfless act of heroism, just as taking an unpopular stand is a sign of courage which is another aspect of heroism. But when these acts of courage are performed in the political arena it should be expected that such acts will have their supporters and detractors, both of whom may use "those silly judgment icons" as a response to a post.
Now those are heroes.
But, notice how quickly the very people who benefited from their sacrifices attack them.