Vim 7.4 hybrid line numbers not working (installed via Homebrew)
It turns out the problem was not with Vim 7.4, Homebrew, Macs, or any combination of the 3. Just my brain. I was used to vi pointing to the vim that I want, but in my case vim points to the Homebrewed version and vi points to the version originally on my Mac, which was Vim 7.3. I usually use vi and vim interchangeably and that shot me in the foot here. I have vi aliased to the Homebrewed Vim now and everything is dandy.