If you want to motivate people, you don't rely on logic and reasoning. No, what people need is a symbol. A slogan, a flag, the face of a hero to stick on a T-shirt.
So what do you do if the real world doesn't provide you with something people can rally around? You just make that shit up.
Despite anarchists' general failure to unite long enough to make any meaningful progress against their ideological enemies (democracy, capitalism, communism and Internet forum moderationism), they do have a few running themes and symbols in common. One of the most prominent symbols is the 17th century English revolutionary, Guy Fawkes, whose famed exploit was his attempt to blow up Parliament in order to destabilize the British government.
The comparison is probably most recognizable to popular culture as the basis of the graphic novel/box office catastrophe V For Vendetta, in which a dude dresses up like Fawkes and brings down an evil dystopian theocracy. In recent years, through some bizarre online game of Chinese whispers, Fawkes has also come to somehow represent Internet teenagers' struggle against Scientology.
Because hey, why not?
While anarchists may be right that Fawkes was the only person ever to enter Parliament with honest intentions, they've forgotten what those intentions were. Fawkes wasn't trying to destroy an evil theocracy, he was trying to install one.
Fawkes' face of freedom.
Fawkes was a fighter for Spain and the Catholic Church. His goal was to end the slightly more egalitarian Protestant revolution in England by restoring Catholic domination. If the Gunpowder Plot had actually succeeded, Britain would probably look less like an anarchist commune and more like the fascist police state Alan Moore warned us about.