I have an odd feeling that I've commented about this one before. Maybe this article cycles back around to HN every year or two? There are large populations of

I have an odd feeling that I've commented about this one before. Maybe this article cycles back around to HN every year or two? There are large populations of users who are forced to use IE6. Still. In 2012. They are not allowed to upgrade their work computers even though they may hate IE6 and use a modern browser at home. The reason is usually that their corporation, hospital, organization, agency, etc. paid lots and lots of money many years ago for custom software that cannot run on newer versions of IE, or is not certified to be reliable/secure/accurate/etc. on newer browsers, and so those organizations must either force their users to use IE6, or pay lots and lots of money, again, to replace/re-certify custom software that is still working perfectly well. So the business case for forcing your employees to stick with IE6 is still very rational in some places, even today. If you're developing a new way to tweet facebook likes or something of that ilk, that's just fine; anyone using IE6 in your userbase should be encouraged to stop. But if your users might include any of the sorry souls who are forced to use IE6, at the very least you should be kind when you tell them they aren't going to be able to use your site.