What’s Wrong with Yahoo?

I stopped using yahoo after they removed pop-forwarding, but Atul Chitnis’s criticism of yahoo makes it clear that yahoo is truly clueless. Jeffrey Zeldman, in a piece on obsolete web standards, shows the awful code that yahoo does to maximize compatibility with old browsers. I’m no fan of yahoo (I discontinued my mail account after they stopped free pop-forwarding), but they still have some fundamentals right. For example, their my yahoo page is a masterpiece of usability and customizability. So is their calendar, and their briefcase, photos and even online banking. But when are they going to remove those nasty pop-up ads?