The fact that they're actively developing it and trying to best the open-source browsers in performance helps competition which is a good thing. Microsoft have

The fact that they're actively developing it and trying to best the open-source browsers in performance helps competition which is a good thing. Microsoft have actually continued to improve IE a lot since 9 in areas like web standards support which helps drive the web forward, particularly for technology-noobish people who don't install 3rd party browsers.