Theoretically, my goal wouldn't be to influence debate. It would be to find places where thoughtful individuals discuss ideas like this that have an anti-current-government-position bent, and not put forth well reasoned thoughtful arguments. Instead I'd just throw out, en masse, the same tired fearmongering comments, surveillence apologist comments, accuse snowden of being a traitor, anything that would make the pro-democracy elements of this site feel like they are in the minority, or unwelcome. Then they leave, or comment less. Movement destroyed. A slew of garbage one liners about protecting freedom or trusting the secret ultra-powerful decision makers and all of a sudden anyone who has anything intelligent to say feels like, "why bother. This isn't the place for me, obviously. Maybe noone agrees with me."

Actually changing someone's mind through argument is almost impossible. On the internet I'd say it is impossible. So don't change minds, just make the people who disagree with you feel like the whole world is against them when actually they're in the majority.