I agree its not the device or IE its the site not supporting IE. Have any of you ever noticed sites looking like plain text versions of the site or not working on your WP device but work and look better on IOS and Android. I've noticed some sites having more functionality like swipe gestures and look more visually appealing when I use my IOS device, but having less functionality, dull looking, sometimes plain text pages, or being redirected to desktop versions of the site and not the mobile versions when I visit the same pages with my WP device.
I wonder if sites are coded to support the browsers on Android and IOS and their features but then have dumbed down pages with limited or no functionality that the site defaults to when other mobile OS'es visit their site. Or they have pages that just don't work for other browsers because they mainly only care about supporting browsers on Android and IOS.