I suggest you sign a message from this address 1Gbiv7bC37xnQrdvbZzPFTHCzmqkfKGJnz (https://bitcointalk.org/index.php?topic=948752.msg10388096#msg10388096) to prove you own this account and show to them. Then they will have no reasons to still keep your negative feedback.
One question to ask: how did you get back your account from the hacker? Probably the one who helped you can clarify for you here.