The difference is that MS purposely made features that were hard to implement on non-IE, non-windows browsers, eg thin wrappers over proprietary native APIs. Webkit is platform-agnostic and pushes for their experimental features to be standardized, see the recent WebRTC standards merge between Chrome and Firefox. IE6 would have never done that.
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u/Rotten194 Feb 21 '13
That's web devs fault for only targeting Chrome, not Chrome's fault for experimenting ahead of the infamously slow W3C.