This rancid interpretation of postmodernism stands tall in most Arts faculties, at least in Australia, and is passed down from the intellectuals (as defined by Rothbard) to undergrads and to a lesser extent, high school students, as a form of wisdom. Hell it isn't uncommon to see similar views being expressed on this very board.
It is appealing because it allows crackpot theories to flourish, with a wave of the hand you can dismiss any concerns about the empirical, or especially logical, merit of your position, and take whatever stance you felt like taking before considering reality.
Ayn Rand's Atlas Shrugged demonstrates remarkable foresight when it caricatured philosophy in a degenerating society much the same way, in 1957.
Try self-referential fallacy maybe?I think yes. "There are no facts" is an impossible Boolean statement (I'm sure there's a real name for this kind of thing, but I don't know what it is. If anybody does, I'd like to know).
The counter-argument (which generally, even the people making recognise is crapola) is that they aren't claiming "there are no facts" is a fact, they're merely stating an opinion or "raising the possiblity" or some other garbage. Even if this were true, it would undermine their position, since they would admit the opposite of their claim was "equally valid".
But you may then ask, is it a fact they are stating an opinion?