There was a moment in France, where all the philosopher tried to use some psychoanalysis in their works. Lacan was one of the really, most famous psychoanalyst, and was known to be really difficult to read. Actually, a lots of peoples start to speak like him, and a lot of philosophers were really influenced by this.
One of the main point was to use a lot of references to science and a lot of analogies.
I am trying to give you a decent, not opinion based answer but it's difficult. If the first comment talks about obscurantism it's not meaningless. Some people started to criticize the postmodern philosopher. Alan Sokal and Jean Bricmont published a book, "impostures intellectuelles" (intellectual imposture, or fashionable nonsense), which ... well the title says it all. They receive some supports. Michel Onfray also published some works against psychoanalysis, for reasons closely related to obscurantism.
I have some doubts for some of this author. I don't think all of the work they have done is bad, or not interesting. For what I understand it was some sort of fashion, a way to act, to appear smart.
Onfray : Twilight of an idol (Crépuscule d'une idole)
Sokal Bricmont : Fashionable nonsense / Intellectual imposture (Impostures intellectuelles)
I just found also that there is a wikipedia page on this topic :
Apparently Noam Chomsky is cited here.
By the way I don't know if you read them in french or a translation, but even for french people it's really hard to read.