Thanks for the thought-provoking article.
I remember a story from the 1990s, when I was in grad school (civil engineering) at Princeton. An undergrad got caught submitted a senior thesis that he had bought. He left the receipt in the thesis when he submitted it!
Post-modernist academia is an insidious mess!
However, I don't quite agree that all of psychology is bogus. Experimental psychology, as done by Daniel Kahneman, for example, has I think produced valuable knowledge. Unfortunately that knowledge is used all to effectively to create propaganda and shape the opinions of the masses. For example, see my previous post about Sensationalism and Availability Cascades.
Thing is, most people tend to ignore these circumstances and rather wish to believe that academia is pure.
I can make a case that almost all psychology is bullshit. The themes that do have solid grounds are the ones about anthropology.