Validating themes for Wordpress

George Bray has a new blog "Electric Telephone: Letters home from the high broadband future". One of the postings was on a 3G Wireless Antenna. While the content was good, the formatting of the blog was technically awful, with thousands of HTML: markup errors (inlcuyind hundreds of surplus ) and unnecessary CSS. George responded that he had used one of the supplied themes and a quick search showed there was a whole industry around fixing up poor Wordpress themes. I had assumed it was just Blogger which had non-standard poorly designed themes.

Also I found a W3C MobileOK Wordpress Plugin. It seems a shame that having a design which is quick to download, works reliably and is easy to read seems to be treated as an optional extra, rather than essential feature by the Blogging community.