Earlier quoted context omitted.
For all intents and purposes, IE6 and IE7 are dead. They account for less than 1.5% of worldwide browsers [1]. At this point, seems okay to leave out. [1] http://gs.statcounter.com/#browser_version_partially_combine...
Sure you can quote stats all day, but it depends on your target audience. If you are running a tech website (such as HN/TC/Reddit/etc) you will see a HUGE portion of visitors using browsers like Chrome/Firefox and hardly any IE. However if you are building websites that regular people use they still use XP and IE7... so much so that it can account for 10-30% of your website traffic.. It really pains me when HTML fram…
Those who still have a need to support those browsers should code up and release an additional library that adds support to garlic.js so it can be used only by those that need it.
In fact, it'd be great if every library added cross browser support for old browsers as add-ons to libraries instead of making them a core part of the library.