He used default-male pronouns in his documentation for Ladybird, and didn't want to change it when some random person made a drive by PR to do so, so a huge Github thread — where a bunch of leftists flew in from left field, who had never cared or known about the project before, let alone contributed to it — started to harass him over it, although those comments seem to have been deleted now.

Then after that, Drew DeVult decided to go after him, digging up and hyperbolically misinterpreting his every tweet to make him look like an, in Drew's words, outright fascist — for instance, confusing objections to affirmative action with belief in White Replacement Theory.