F*ckward compatibility

I knew that moving from HTML4 to XHTML1 would not be a long fleuve tranquille. Mainly because for the first time in my little web experience, the new standards were not backward compatible with the "old" HTML, and I had to rediscover things pretty much like a decade ago. Well, the journey sounds even more interesting now with the next station, and Mark Pilgrim has a colorful description of the level of forward compatibility one may expect from standards:
Standards are bullshit. XHTML is a crock. The W3C is irrelevant.
I’m migrating to HTML 4.
Ahem, there will surely be followups to his post in blogspace...