NEVER EVER move one single html file or change an URL. Don't you hate it when you click on a link and it says "404 file not found"? Well, I've been here since 1994, and all the links to my site still work!
He's full of what seems to me good advice, e.g. from the same page:
Make your website be your filing cabinet. If you have little projects underway, put them on your website while working on them. Reject the paper-publishing traditions of polishing an article to perfection before publication. DO NOT ELEVATE IMAGE OVER CONTENT. (Perhaps even keep yourself honest by cultivating a deep revulsion for "image.") Instead, let all your flaws hang out, and type things directly into your site in rough draft form (label them UNDER CONSTRUCTION if you really must).
Expunge the fear of embarassment from your life, and instead practice making foolish mistakes in front of thousands of strangers. Stop using your PC to store files, instead use your website as your main storage. Let people poke through your filing cabinet. It will contain far more than a perfectly polished website does.