I don’t think this is as cut and dry as the author would have you believe. Given the options, I think I would rather have the class of problems that come with

I don’t think this is as cut and dry as the author would have you believe. Given the options, I think I would rather have the class of problems that come with being able to prove where an email originated instead of the problems that arise from not being able to do so. Proof protects a lot of innocents from bad actors in a lot of ways. Lack thereof protects whistleblowers and the like. It’s not a totally clear win one way or the other. I just suspect the prior helps more people.