> still refused to list any specific part of Replit he thought I had copied, even when I asked him for such details multiple times during the phone call, despite his continuing to claim both privately and publicly that I copied Replit unethically

The CEO Amjad Masad was still doubling down on claims that Radon is a thief on Twitter even after he apologized. And he still refuses to provide details or receipts to his public accusations, despite Radon's willingness to provide receipts.

But you are asking for Radon to be gracious?