@syntaxseed @allevatoreanon I'd say if you think an average member of *the target audience* would regret their purchase, a negative is warranted. For example, I really don't like social deduction games (Secret Hitler, Among Us, etc.) because while I'm good at the deduction part, I don't like the "lying to my friends" part (it just makes me uncomfortable). Even still, I can look at Among Us and say "this does a lot well that is properly represented on the store page and in the advertising material (videos/pictures)."
If you bought the game because something on the store page made you say "this seems like it does things differently from what I normally dislike about this genre" and it didn't deliver, I think that's a valid complaint. If I buy a Monster Hunter game because it boasts faster upgrades, but it's still just as grindy as ever, that's going to keep me from playing the game I spent considerable money on and I think others should be warned.