The phrase didn't care in this context means that he was OK with his opinion being called wrong, not that he literally doesn't care either way.
Re:I Violated a Code of Conduct
by robbyoconnor on Thursday October 29, 2020 @01:45PM
(#24933062)
Precisely what was said above is what I meant.
https://twitter.com/joelgrus/status/1321627567737069568?s=19 he said their decision was fucked up.