Have you ever worked on multivariate tests?

Testing is how you learn and quantify how much something is disliked, or used, or leads to conversions. This is the perfect fit.

I prefer the 1-column layout (user since it was rapgenius.com). If they got angry emails from their users about their UX, and they decided to set up a test to improve it, that's not in the spirit of degrading the UX.

Maybe they know because of the A/B test? Seems like it could be a good idea and make the layout easier to use on mobile. I don't find it THAT bad on desktop, although on the side is better.