>
Would you hypothetically not use a fast, super-compliant, feature-rich Mosaic out of an irrational bias?No bias. I've tried to use Opera from time to time. Always stopped because:
1) Awkward UI. The QT theme engine it used (still has?) made it always look and feel off, in both Windows and OS X.
2) Some extra features (mail? download manager?) felt subpar compared to dedicated apps. Why would I need those in a browser anyway? That's why I stopped using Mozilla for Firefox 5-6 years ago.
3) The main operation of any browser, err, browsing web pages, was frequently hit with bugs, incompatibilities etc. I was always left out when browsing the more advanced HTML5 stuff, what with WebGL etc. And I never particularly liked the font rendering.
Some stuff I did like. But an incompatible engine and a bad look & feel didn't really entice me to keep using a browser. Mouse gestures etc, I could not care less, I find them gimmicky anyway.