Your WWW naivety is almost touching, but the reality is most websites disappear after a couple of years and that's a fact. Just cause you have a free site, doesn't mean it'll be around after you snuff it. If you don't log in for a set period, they disappear automatically.

Just as well you've published a 'book'! That means at least an unlucky Oxfam shopper will find a copy in amongst the 'Mills and Boon' section in 2017.

HTML is what holds the web together. The idea that you can just delete it to make your site work better is demented.

You're demented.