I'm fairly sure the parent was joking and in full agreement with you. Just so this isn't a point out the joke post, a few years ago I saw a HN post from a bunch of people who used print to PDF, and pdfgrep as a bookmarking solution. It doesn't solve the original problem, but it does act a a coping strategy for when content goes missing. I've been using it for a good while now and it's been real useful already.