Are you aware of the console? I have used it for all kinds of stuff. Here's what you do: go to about:blank, open the console and start typing JavaScript code. Try: document.write('hello world')
Sorry that (having posted the link) I don't have anything that concretely adds to the discussion, but I just thought I should point out that I'm not the author of the blog-article, as a few posters here seem to think.
I definitely don't endorse the author's views either, but I thought it was an interesting post for discussion, and I certainly don't think that making some aspects of coding more accessible is a bad thing.
edit: I just noticed the actual author is posting to the thread.