Lots of people use ChatGPT for things that hallucinations aren't an issue for. Drafting emails or articles or blog posts (which the human reviews and polishes) and other fun things like generating haikus are pretty common use cases.

Personally I also find the level of hallucinations (with GPT 4) to be minimal as long as it's a widely covered subject. The more technically niche, the worse the hallucinations get.