[andreastt]

If a user has a sub-par experience browsing a website in one browser, she will switch to another and the loss is on the browser vendor’s behalf and not the website’s.

The vendor has an obligation to create the best web experience for the user and while it’s certainly a sad state of affairs that not more sites are testing for features rather than the UA string, it’s a sad fact that not all web authors care enough about interoperability to remedy their bad ways.