Yes I have also seen such a feedback, I also saw a negative feedback for ban evasion and it mislead me to start tagging user for that offends until I asked suchmoon if that was right and he said nope and that lead me to writing this guide concentrating on negative feedbacks.

PS: : I just updated topic, Visit Discussion about acceptable and unacceptable behavior. Community values. DT for more understanding on how the trust feedbacks (positive and negative) should be used.