[kriswill]

If you have significant resistance to upgrading from Windows XP or IE8, then you need to charge more for your product. Let's face it, maintaining websites on older browsers that have poor standards support is expensive.

I maintain such a web application myself. I work primarily on OS/X as my main development machine, and run various windows versions in virtual box in order to test these older browsers. Since the feature is usually completed using modern browsers up-front, there almost always a QA glitch that has to get worked out on IE8, chewing up another 20-30% of the total time of the project. Time that costs everyone in the business time, energy and pain. Think about that; 30% of the cost of development to support < 3% of the users.

When the large web companies like Google and Facebook remove support for these legacy browsers, every web developer on Earth cheers. Every instance of IE8 that is snuffed from existence is more time we can spend on creating great software features, and not wasting time back-porting.