Twitter’s announcement this week that it was going to enable country-specific censorship of posts is arousing fury around the Internet. Commentators, activists, protesters and netizens have said it’s “very bad news” and claim to be “#outraged”. Bianca Jagger, for one, asked how to go about boycotting Twitter, on Twitter, according to the New York Times. (Step one might be… well, never mind.) The critics have settled on #TwitterBlackout: all day on Saturday the 28th, they promised to not tweet, as a show of protest and solidarity with those who might be censored.