We also just released a feature that allows you to enter your QF Frequent Flyer # on the Preferences tab of the My Account page. When a QF seat map search is done the FF# will get sent with the request and if you have elite status, you'll see available seats that otherwise would show up blocked to everyone else. (We already did this for UA)

If there are other airlines that anyone knows of that do the same thing, please email or PM me and we can easily test it out. Thanks.