Who do I need to talk to to get feedback removed from my history because the Russian guy last week who tried to sell the 3 levels and got caught left bad feedback from the user he hacked into on my history! Thanks Jimmy
That would result in a lot of transactions going unaccredited, reducing/eroding the effacy of the feedback system. Account hacks are more of an exception opposed to the rule in that its still relatively rare.
The best defense against these account take overs is enrolling in two-factor authentication.
Additionally I now limit who can view my profile (you can adjust in your pricacy settings).