I don't think so - unless I'm missing information about them (they're now rebranded as just "Genius" FYI). Their two main controversies that I'm aware of were the SEO violation thing and the founder's inappropriate comments about the serial killer's sister.

The first they apologized (and were penalized) for, the second they fired the founder. They aren't embracing negative attention, as far as I can tell.

I disagree. Even though Rap Genius has showcased plenty of what I like to call "douchey" behavior, in the end of the day they still make an awesome app that I and many others essentially need.