Developers, myself included, may not care about IE as a browser, but the vast majority of the people using my web applications most certainly do as they are using IE. So I care about IE in that I have to field a lot of support requests for it and ensure that the JavaScript I wrote doesn't bomb out on a dangling comma. Those IE users also pay my employer a lot of money to use those web applications to get their jobs done. So yes, people, as in civilian non-developers, do care about IE, quite a bit in fact.