Someone help me out here, especially ccr?

It's because Trevor accused you of being someone else so now everyone thinks you are too. Don't worry, if everyone Trevor accused of being JD actually was JD, there would be no one left. The favourite thing for people to do on here used to be to call men secret women and women secret men. Now though, after this whole JD debacle, if you don't like someone it means they are JD.