The Dead Internet conspiracy theory was written with total crackpot paranoid thinking about ruling elites, likely antisemitic undertones, and general tinfoil hat reasoning about AI. Plus generative language models were nowhere near advanced or skilled enough at the time the conspiracy was purported to be happening.
But it was accidentally prophetic in at least two ways by 2024:
Corporations have completely strangled online social spaces to the point that most people only visit about 1 to 3 of them, and
Online discourse in those social spaces has been absolutely captured and manipulated by multiple governments trying to manipulate other countries and stir them into pointless ragebait frenzies.
It wasn’t due to the illuminati, the Jews, or anything weird and bigoted conspiracies of old have traditionally blamed. It was thanks to billionaires, corporate and government espionage, AI grifters, and unregulated scammer networks (digital currency counts too) jumping onto the same technology at the same time and ruining everything on the Internet in similar ways.