Don’t say anything about someone in email you would not be comfortable saying to them directly, because eventually they will read it.
Side notes:
Kevin Kelly (born 1952) is the founding executive editor of [Wired magazine(https://www.wired.com/){:rel=”noopener” target=”_blank”}, and a former editor/publisher of the Whole Earth Review. He has also been a writer, photographer, conservationist, and student of Asian and digital culture.