Why do you use hacker news when anyone can lie to you? You still use it because it is directionally correct and the accuracy rate is high enough that it makes it worth it.
Same with ChatGPT. I use the thinking model and rarely (if not never) get obvious errors.
Its not perfect, just like talking to humans, online information, the news, or even books. It makes mistakes all the time, so you have to think and judge, just like the rest of life, but I find it is a tremendous resource.
Recipies are one of the strongest areas given the low complexity and obvious training data. Im curious what it messed up on with.