Matt: IntenseDebate auto-login

WordPress.com User Accounts now auto-login to IntenseDebate blogs no matter where they’re hosted, any website in the world. Connect services like Facebook’s and Twitter’s always require at the very least a click or two, and in worst case can be a full login and several bounces to the origin site, which increases the friction of commenting and can actually decrease the number of comments you get. (Oh noes!) This is much smoother, and faster. Previously this was only available if you actually hosted on WP.com, now it’s for any website, anywhere.