> Things that are "undesirable" simply meet an information theoretical death sooner than they otherwise should.

A good example is how payment processors (mainly the major credit card companies) police adult sites, forcing them to ban certain keywords. It's a weird situation in which the role of morality police is played at the point where control can naturally be exercised in a capitalist economy.

As we'd expect, that same pattern is repeated elsewhere, e.g. in social networks that censor in all sorts of ways, many of them explicitly intended to reinforce the status quo and neutralize or undermine dissent.

When you have an authoritarian government, all of this tends to happen more centrally. But democracies tend to distribute this function throughout the economy and society.