Frankly, using "bad" was a mistake, because it encompasses the two other adjectives. "Your chatgpt-like style is vomit-inducing, bad and boring" <-- you see, why add bad in the middle, you already got that point from the two other insults, right ?

I think if you want to sound less like an AI, you should cut cut cut, and maybe write a bit more like speech, with sort of slangish structures etc, people won't doubt you anymore.

Good luck !