[jvehent]

Microsoft not supporting older IE doesn't mean front-end people won't have to if their sites have users who don't upgrade.

It just means Microsoft can't be bothered to ship patches for those older browsers.

[mkozlows]

Everyone using a browser that doesn't get security patches is basically a walking malware farm. Not supporting them with your site and pushing them to upgrade is the moral high ground.

[l1ambda]

This. In fact by supporting those browsers on your website, you're in effect complicit in allowing malware to hijack those users' logins.

[ToastyMallows]

It's a good first step though. This means that websites can start telling users "we don't support this browser because Microsoft doesn't", etc., and they will die off quicker.