I hate when people hate the "if you have nothing to hide, why do you care?" question because it's a valid question. You can answer, "because I fear the creeping growth of a surveillance state like in 1984", but then again, if you do that you no longer get to claim that other "slippery slope arguments are fallacies".
I've been a bigger privacy freak than all of you since before you were born, google my somewhat unusual name, you won't even find me. But still, I enjoy making fun of the groupthink that infects these types of communities.