I only left negative feedback fo you because you left negative feedback for me in the first place. Tit for tat!!If you withdraw yours I will withdraw mine!
While some of these revenge feedbacks are obvious, like the ridiculous one above, some aren't so blatant. But rest assured, if you mention the feedback you rec'd when leaving feedback for someone else, it will be considered revenge and subject to deletion.
Perhaps I should start a thread of the most ridiculous feedback we run across to embarrass people into actually thinking before giving feedback?