ChatGPT’s “voice” changes dramatically in diction and prose when you ask it to generate text in the style of a popular author like Hunter S Thompson, Charles Bukowski, or Terry Pratchett. You can even ask it to generate text in the style of a specific HN user if they’re prolific enough in the training data set.

Fine tuning would allow you to achieve that for people who aren’t notable enough to be all over the training data