I get what you're saying, but how is incel different from "hacker" (when Anonymous does something newsworthy) or "neo-Nazi" or "White supremacist" in situations

I get what you're saying, but how is incel different from "hacker" (when Anonymous does something newsworthy) or "neo-Nazi" or "White supremacist" in situations where the subject of the article wants to be known as part of that community? The guy in your article doesn't seem to be ashamed of the word, and its original meaning wasn't pejorative to them. It was a way to find support without shame. Slut was always a negative word that has had to be reclaimed, and there still aren't online slut communities inspiring each other to murder innocent people. (I'm not the one downvoting you btw)