Try visiting this site in IE8. Go on, I dare ya. Alright, I’ll tell you - it’s an ugly white page with black writing. Oh except for a banner at the top telling you to upgrade your browser.
So if you were bold (like this site), you could probably drop support completely and effect less than 1/5 of your visitors. And those visitors would quickly upgrade their browsers.
Dropping comes with significant advantages:
- Use practically all of the CSS selectors
- Use HTML5 semantic elements without a shim
- Use much more of HTML5 confidently
- Use WOFF format exclusively - making it easier to use Data URLs
These four points will effect your debugging time for front-end development dramatically.