Exactly. Pandora's box was wide open by that point. XHTML would have been a good idea at the start of the web, but not ~2000 during/after the dotcom boom. And i

Exactly. Pandora's box was wide open by that point. XHTML would have been a good idea at the start of the web, but not ~2000 during/after the dotcom boom. And if you can't mix existing web content with XHTML stuff it defeats the point.