In defense of version targeting.
Jeffrey Zeldman’s thoughts on the version targeting debate:
Today too many sites aren’t semantic, don’t validate, and aren’t designed to specs of the W3C. Idealists think we can change this by “forcing” ignorant developers to get wisdom about web standards. Idealists hope, if sites suddenly display poorly in IE, the developers will want to know why, and will embark on a magical journey of web standards learning.
See also Not your father’s standards switch.
