Just a cursory glance at browser stats seems to show chrome as the most popular which would make sense. I highly doubt anyone using internet explorer is coming to SO.
Umm, why not? I use IE 11 in day-to-day usage and as my primary dev target. Chrome is god awful on my machine (it sucks on high DPI displays, has terrible touch support, worse/slower UI responsiveness and animations due to single UI thread, etc). I only use it for compat testing.
Also nice that IE doesn't still require prefixes for established things like transition/transform. If only Chrome and others would get around to implementing other useful CSS3 features that IE has (like grid) we might be able to actually use them some day.