Elon Musk’s decision to abruptly suspend several journalists from Twitter sparked an outcry Friday from First Amendment advocates, threats of sanctions from European regulators, and questions about the social media platform’s future as a gathering place for news and ideas.

But as people debated complex, novel issues of free speech and online censorship, the move also underscored the role of a simpler, more enduring element of American life: the press baron.

Hello, Citizen Musk.