Тэговый суп

Интересный пост от Jeff Atwood-а на тему читабельности кода веб систем. Цитата:

I don't mean tag soup in the sense of badly formed HTML, or the malformed world we live in. I mean tag soup in the sense of mixing HTML markup and server-side code. Now you can double your pleasure: badly formed HTML, meet badly written code.

The tag soup problem seems to be endemic to all modern web development stacks. I see that Ruby on Rails apps have the same problem...