I changed my HN handle from Mz to this one after more than 8 years and only after hitting the leaderboard. I appear to be the only woman to have ever spent time on the leaderboard. It genuinely took me that long to conclude that my handle was a real problem in part because I was so dramatically outperforming other women in terms of being accepted here that, for the longest time, it honestly wasn't clear to me that it particularly mattered.
Changing my handle was so very well received that I'm sure I did the right thing. But, no, I honestly didn't see it as a big issue until after I hit the leaderboard. A few weeks later, I changed it.
Linus is a man with no real peers and there are few people who are anything close to a peer. It is hardly surprising to me that he lacks perspective on some details. It would be quite shocking if he didn't lack perspective about some things, given the path he has walked.