Zepher gone away months ago, but Lutpin has still posted recent weeks. He has been less active than before, but still logged in and posted. I think Sportsbet.io can ask him change his neg feedbacks through PMs. For Zepher, why not ask admin to replace that feedback, or change it with a note that feedback edited by admin because Zepher gone and case solved already.
Admin edited thread of Hal Finney, and left a note at bottom.
I think admin or global moderators will take this case of Zepher into consideration.