They build a giant wooden man and then burn it as an effigy. The “the man” they’re destroying is kept vague so you don’t have to think about it while you’re high in the orgy dome with a lawyer who got nestle off the hook for child slavery.
there were always 'techbros' at burning man, it was started by techbros in the bay area who also were into art and more importantly blowing things up which is why it moved out into the desert wilderness. I used to go in the 90's and this idea that it was some hippie art thing that got coopted by nerds is just a bad history rewrite. It was always nerds.
It's a gigantic man made wook altar filled with wook sprites that are lit on fire once a year in the NV desert, and they spawn >10000 wook sprites upon ignition, and those sprites weevil into the surrounding human brains, then those humans go back to their respective colonies to make their attempts at gaslighting their friends to join their cult. If they're unsuccessful, they must join ecodefense on the front line.