I imagine there are a few reasons. An LLM is a narcissist's dream--it will remain focused on you and tell you what you want to hear (and is always willing to be corrected).

In addition, LLMs are easy to manipulate, and sort of mimic a person enough to give you a sense of power or authority. So if you're the type of person who gets something from that, there's likely a draw to that kind of person.

Those are just guesses, though. I don't use LLMs myself, so I don't really know.

My completely PIDOOMA take is that if you're self-interested and manipulative you're already treating most if not all people as lesser, less savvy, less smart than you. So just the fact that you can half-ass shit with a bot and declare yourself an expert in everything that doesn't need such things like "collaboration with other people", ew, is like a shot of cocaine into your eyeball.

LLMs' tone is also very bootlicking, so if you're already narcissistic and you get a tool that tells you yes, you are just the smartest boi, well... To quote a classic, it must be like being repeatedly kicked in the head by a horse.