When you claim freedom of speech on your sites but then block, delete, or flag anything that differs from your opinions you tend to become a walking, talking contradiction. When that happens the people tend to band together forming a sort of digital protest against you. So you go out and buy/rent power to quell the unwanted rumors and truths. That leads to the group buying/renting power for their prominents. Now you have created a sort of war.
What do you do?
Do you go buy/rent more power hoping you can out buy/rent the crowd?
Or do you quit the charade and walk away?
Or do you own up to your deceit and make amends?
In the end you cant win a comment and voting war. It just becomes to costly. But I am willing to play if everyone else is :)