I wonder if the grammar mistakes are beneficial for adoption or if it drives people away (no, really). The "who is already use" line on the homepage reminds me of "All your base are belong to us." I could see it appealing to a certain audience of programmers, IT support, and the like -- particularly those with a background in gaming.

Has anyone done any A/B testing on something like this?

[Edited: I'm _really_, _really_ not trying to be the grammar police here. I'm in no position to do so, and my grammar is faaar from perfect. I'm just wondering about the actual impacts (or lack thereof).]