It's interesting that you and vijayboyapati focus on this one paragraph of a much longer reply, and that you perceive correcting somebody as attacking them. Indeed, that's something that hasn't gotten better over the years, anywhere.
>you perceive correcting somebody as attacking them.
Correcting someone on a pedantic issue outside their main point IS considered if not an attack, then surely quite rude, in regular conversation.
Even more so when you add: "People who refer to it in all-caps instantly give themselves away as outsiders to the language" trying to expose them as some kind of wannabe poser.
What the fuck does this guy knows about the parent's history and expertise in Perl?