>>2Therefore we must consider whether the pleasure from expressing these taboo viewpoints is wholly derived from the cathartic sensation of speaking truth for once.
Maybe. But a physics textbook has a lot of truth in it too, yet it's not cathartic to express its truth value. Ideas being forbidden makes them interesting.
When years ago I first read about race and IQ, I felt adrenaline. It was a sort of high.
The curiosity and interest comes from the possibility that something taboo (Jewish Conspiracy) might be true. After you are convinced it's true, it no longer generates curiosity or excitement.
If the Nazis won, the same users of /pol/ would today consider eugenics an unnatural plot to convert people into slaves and would post on Orthodox Judaism imageboards, trying to resurrect it as a suppressed ideology.
My thesis is that /pol/ is the outcome of bored or depressed people finding stimulation by entertaining extreme taboo. Whereas some others might fall into a similar hole by doing heroin or becoming a prostitute who does scat play, /pol/ users chose a non-physical, abstract vehicle for their thrill-seeking. One's ``power level'' is analogous to one's stage in the progression from watching anal sex porn to bondage porn to snuff films and so on.
Eventually you exhaust the taboo political ideas, and you're past the point of repeating the ride by swinging backward to become a tankie. The only exciting thing left to do is to go Breivik like Tarrant did. This means we will see many more mass shootings coming from /pol/ with the aging of the current generation of users.