It may not really be RP, but it sure as hell is funny.
I can't help but find it funny every time someone who plays an mmorpg says rp is fail.
As for me, since I'm currently on a normal realm, I don't rp that much, but sometimes you find a group that feels like 'playing along' I have standard macros on some of my skills to spice up things during a battle, like when I summon a Ghoul Kharan always says "Rise, my minion! Rise and serve your master!"
It feels great, and sometimes I even get whispers about it. Some are the standard 'nerd!' or 'lol! relol RP n00b!' but I also get whispers of people saying it's fun to be in a party with me because things happen outside of what usually does in an instance.