Slightly off-topic rant. Can someone explain to me why it is necessary to have the entire webpage refuse to render (white page (with scrollbar, "amusingly" eno

Slightly off-topic rant. Can someone explain to me why it is necessary to have the entire webpage refuse to render (white page (with scrollbar, "amusingly" enough)) if JS is disabled? As far as I can tell, the entire website is slapped into a series of "<meta property=" tags and then converted to HTML using Javascript (from another site, no less!) Whatever happened to progressive enhancement? Say... Actually using HTML and CSS? Maybe converted from markup on the server, or when the post is created? There are any number of reasons not to do things this way, and any number of alternatives that have advantages over this.