This is exactly the sort of thing I come to Hacker News for, both entertaining and thought provoking. If you're on the fence as to whether you want to read a blog post about database schemata do yourself a favour and give it a look.
Some of you probably need this soon.
Also read this: <a href="http://qntm.org/support" rel="nofollow">http://qntm.org/support</a>