... signal a particular vice. It's vice signalling. We generally think of war as bad and try to avoid it, most especially the people tasked with fighting said wars.
Nothing has changed about the performative-ness, in fact if anything it's gotten more performative and hollow. They just signal vices rather than virtues, so a bunch of rightist-flavored-Lenin's useful idiots think it is fresh or effective or anti-"woke" or at least different.
The "Orwellian newspeak" at least makes an effort to aim for positive values, despite falling short. That's the point.
Also, please define what you mean by "leftist". These days it seems like it gets applied to anybody who believes in Constitutionally-limited government and the rule of law. That used to just be called being an American, but social media is a hell of a drug.
Nothing has changed about the performative-ness, in fact if anything it's gotten more performative and hollow. They just signal vices rather than virtues, so a bunch of rightist-flavored-Lenin's useful idiots think it is fresh or effective or anti-"woke" or at least different.