alt Hacker NewsI wouldn't say terrible, and even the most reliable people have bad days. I think the difference is when you are dealing with people, you don't get a generic "you're absolutely right" when you point at a mistake.
Sometimes you get an apology, sometimes you get a wall of ego, sometimes you get reverse-corrected etc., instead of a statistically significant "remedy". This is totally not efficient, but if life should be all about efficiency, we should never live at all.
I’ve spent a lot of time chasing really plausible sounding explanations from AI. I’ve also saved a lot of time by having AI give me immediate, correct answers for problems I can only vaguely describe. The reason I call it a terrible source is that it doesn’t “know” which is which, so it can’t favor the accurate content.
StackExchange could always “learn” to favor accurate answers with social queues; votes, poster rep, etc.. IMHO it’s far more reliable than AI.