On his website, he described himself as a “militant bicyclist” and “a proponent of the singular they, the Oxford comma, and pre-Elon Twitter.“
[Emphasis mine] This is such an important issue to me. Contracts have been ruled upon because of the appearance or lack of the Oxford comma (a union got fucked because it wasn’t there). All his other traits are also admirable, but this is the unimportant-important thing that jumped out at me.