Kudos to you to keep trying the civil conversation going, it's essential. I gave up because I came to the conclusion that there is no real motivation to discuss the issue at hand from core.
As Jim...
At the end of the day their rationale for the change is not "purely technical", nor should it be. The change is (purportedly) an attempt to change the economic incentives. So any economic arguments against the change should be addressed.
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