For a brief overview on a topic the accuracy is good enough. It might get some minor details wrong but they are generally superfluous to the topic, it typically breaks down when you are really getting into the weeds of a topic, or really niche subjects, at which point you have exceeded the utility of the LLMs. I have read many blog posts linked off 1st ranking position google queries in the past and found their answers to have inaccuracies as well, how is that better?