Well, that and it turns out that for a LOT of people "it talks like me" creates an inescapable impression that "It is thinking, and it's thinking like me". Issues such as the absolutely hysterical power and water demands, the need for billions worth of GPU's... these are ignored or minimized.
Then again we already have a model for this fervor, Cryptocurrency and "The Blockchain" creates a similar kind of money-fueled hysteria. People here would laugh in your face if you suggested that soon everything imaginable wouldn't simply run "on the chain". It was "obvious" that "fiat" was on the way out, that only crypto represented true freedom.
tl;dr The line between the hucksters and their victims really blurs when social media is involved, and hovering around all of this are a smaller group of True Believers who really think they're building God.