Big surprise: The Twitter Files — the reports based on internal Twitter documents and messages that the company’s new owner Elon Musk provided to journalists — have landed as a polarizing salvo in the culture war.

Many inclined to distrust what they see as Big Tech’s liberal leanings have cried vindication. The documents show in detail how Twitter made key content moderation decisions that disadvantaged Trump, conservatives, and people who broke with the public health consensus on Covid-19. They say the evidence proves that, again and again, Twitter intervened to squelch speech that the liberal establishment didn’t like.

Meanwhile, others — including most liberals and many mainstream journalists — are unimpressed. They say Twitter’s policies here were already known and that the specific decisions in question — blocking a story they feared stemmed from a foreign hack, banning the account of President Trump after he incited an insurrection, and deboosting accounts spreading public health misinformation — generally seem at least defensible.

The discourse has quickly become one of us versus them — perfect for Twitter. The journalists to whom Musk gave the documents — most prominently, Substackers Matt Taibbi and Bari Weiss — are outspoken, unsparing critics of what they believe is the “woke” liberal groupthink that pervades mainstream American media institutions, making them now effectively allies of the right in the culture war. Musk’s behavior since buying Twitter has made him a villain to the left, too.