I've actually seen it a lot in persuasive—or at least ostensibly persuasive—posts, of the "if you watched ['overrated' thing], you better watch ['better' thing]." Of course, those can be fundamentally performative, too. I've even seen it where it's barely related to the actual argument at hand (x is overrated in much the same way as y).

It's def obnoxious in general—you can argue that something is overrated, sure, but it has to be its own argument and more than a flat assertion. Even as venting, it's grating, but when it's actually in the course of an argument, it's absurdly terrible rhetoric.