In all seriousness I feel like the common answers I saw of Diogenes (because that was like, his entire shtick) or Socrates (because they killed him for being annoying) are probably better answers but saying its Trotsky on a leftist forum is way funnier.
I may be biased because computer science and engineering are some of my deepest passions, and this Dunning Kruger dipshit has managed to gain an entirely unwarranted degree of trust to speak about the subjects. I also personally know people who got suckered into his cult.