Actually, we should sacrifice the designers of these unique features (with extreme prejudice), and I don't particularly care where. While we're at it, add to them all webmasters and webmistresses who thought it would be cute to use these misfeatures in their webpages, because "the user can always upgrade to the browser I happen to be using today". What idiot purposefully reduces their audience, while simultaneously enslaving themselves to some vendor's "technology"?