Yeah. k00b's "story" post about incentives puts things in such simple terms.

"Behavior in human communities develops as a result of the incentives humans in the community are given, and existing online communities influence behavior by format, pseudo-reputation, gamification, and moderation. Basically their communities develop as a result of expression limits, rewards backed by nothing, and centralized control. My assumption with Stacker News is that Bitcoin fixes this by having users stake something other than pseudo-reputation, Bitcoin, and earn rewards that are worth something in the external world, Bitcoin."