I up-voted the story not because I like the message or because I'm for it but because I want it to be seen. I'm against any kind of "attack" advertising and I'd like to see it discussed, not ignored.
When I saw the comment, the story had 6 points i.e 5 upvotes.
Even making the huge assumption and leap that it was all MS employees and no one else voted on it who thought it was interesting news, I don't know if 5 counts as a "large contingent".
To be clear, I am not in favor of this campaign and I did not upvote the story.