[dragonwriter]

> Censorship by public or private entities is dangerous because it destroys the open marketplace of ideas.

On the contrary, private censorship is essential to the marketplace of ideas, since it is exactly private parties choosing how they will participate in that marketplace.

(Where a "private" entity -- or a group of them coordinating formally or informally -- has a, de facto or de jure, protected monopoly on communication in a market, then that entity or entities censoring raises much the same issues as government censorship, but private censorship in general is central to, rather than destructive of, the open marketplace of ideas.)