In September 2016, WaPo published an article with the title: “Scientists published climate research under fake names. Then they were caught.” The subject of the article was one of the lesser known cases of suppression of climate dissent in formerly respectable peer-reviewed journals; suppression that’s supported by a formerly respectable media. That case clearly shows the impossibility for dissenters from climate alarmism orthodoxy to publish in scientific journals.
The Washington Post’s reaction is an expression of its contempt for free speech, which includes the use of pseudonyms. Alexander Hamilton, James Madison, and John Jay wrote The Federalist Papers under the pseudonym (or the “fake name” according to WaPo) Publius. In The Federalist Papers they advocated ratification of the Constitution, seemingly another object of the WaPo contempt.