Apparently the social media’s powerful CEO hasn’t figured out that when you pat yourself on the back for speaking truth to power — and at the same time, protecting the masses from unsafe speech — you sound like the Politburo. Or a modern university that uses speech codes to muzzle dissenting — that is, conservative — opinions. Why? A spokesperson explained in an email that Twitter doesn’t comment on individual accounts “for privacy and security reasons.” McCain posted a tweet that informed him he had violated “rules around participating in targeted abuse.” Because Twitter won’t provide documentation for that abuse, conservative media have been left to guess why the platform silenced McCain. McCain is best known for his posts on #GamerGate — the hashtag for critics of a feminist crusade against sexism in the video game industry. Before the Truth & Safety Council, the tech giant also suspended the account of George Zimmerman — yes, the guy who killed Trayvon Martin — for posting topless photos of an ex-girlfriend. […] all users have the ability to mute or block unwelcome voices — and hence can shield themselves from harassers.