Should Restaurants Add The Tip Automatically? [POLL]

I saw this picture floating around Facebook. It does bring up a good question. Should the tip be added automatically? What do you think?

I'll admit, for the first few seconds I was thinking how much of a jerk this person was for not tipping. That was until I saw that the tip was automatically added to his or her receipt. What do you think? Does it make sense that it's added like that to save you the trouble of doing math or should you dictate how much you tip based on service?

I'm not a big fan of this only because, even if I pay with my card, I like to tip in cash. But if it was added for me, I wouldn't have to think about tipping and it'd be done with. Or what if you get terrible service? I don't know, I'm on the fence.

What do you think?