First of all, I am not a fan of anyone being proprietary. Internet Explorer is the browser we all love to hate. It doesn't conform to standards for coding or rendering. However, with that said, Internet Explorer is known to be the best browser to acquire viruses with and is the best browser to download another browser with. I am a Chrome and Firefox fan and use them whenever possible. I say that because I have found that some websites have not been cross compatible with all browsers and will only work with IE, still forcing you to use their browser.
I love the idea and think this is a good way to show your loyalty for the browsers that actually deserve to be shown some love.