In fairness, this is Hacker News; flame wars^w^w respectful but intense debate over editors, operating systems, and, yes, ISA details, is somewhat expected. (Although, yes, I'm not sure that I would get too worked up about this particular detail; even if the stated claim is 100% true and unmitigated, it means some kinds of code will have potentially bigger binaries. I understand a math library person caring, I don't think I care.)