The only people who could damage fungibility at this point are the Core developers and the handful of dominant mining pool ops. These are the parties to whom you should be directing your plea. Directing the attacker to do what you say reads like a letter to santa.
That is factually incorrect seeing as the Core developers are the principal drivers behind efforts to improve fungibility.
I'm not directing the attacker to do anything but consider his options in case someone manages to rile up enough loud mouths.
I didn't create this thread for you trolls to pollute it with Blockstream/Core/Blocksize non sense either