It didn't immunize Eliezer Yudkowsky, and he wrote Markov chain fictional characters. Everyone who looked up AI enough times knew about ELIZA.

He constructed an echo chamber with himself at the center and really lost himself in it; the power of people telling you that you're a visionary and a prophet can't be overstated. Ironically it followed a very familiar pattern, one described by a LessWrong term: "Affective Death Spiral".

And now we have AI death cults.