Meh. They're half good, half snobby and self-righteous. He famously refuses to date his blog posts. And in this case, the page is years old, no longer relevant

Meh. They're half good, half snobby and self-righteous. He famously refuses to date his blog posts. And in this case, the page is years old, no longer relevant to the content of his blog and contains techniques that are not recommended and will in fact slow down your page load. Either keep content relevant, or put dates on it so people can be aware that content might be outdated.