It's an online web app. You can give different people different interfaces for the same data. You can even let them choose which interface they prefer. Your dat

It's an online web app. You can give different people different interfaces for the same data. You can even let them choose which interface they prefer. Your data-collection might tell you that 90% of users would be better off one way, but that's an argument for changing the defaults, not for alienating a chunk of your userbase. And if every change like this is upsetting 10% of your users...