I despise automatic tipping anyhow. If you are a service worker, you can earn your tip. Chances are, without automatic tipping, you would get more than the restaurant automatically added anyhow. There is no reason for the waiter/waitress to do a good job, and go above and beyond for the guest if there's an automatic tip. For those that say "pay them a living wage", you do realize that will make the price of the food go up quite a bit, don't you? I also hear waiters/waitresses have to share their tips with the rest of the staff. So they are puppets anyhow. Cooks and bussers are usually paid a better hourly wage, but the wait staff have to share with them. It's all just a mess anyhow. We tip based on service.
I do despise the hand out everywhere though. I went through the "Good Times" drive in once (will never do that again!) and the guy handed me the credit card thing, and told me to finish up the transaction. It was on a "tip" screen!! He was asking for a tip in the drive through!!! It's out of hand. Everyone wants free money handed to them. I will also add, you went into the job knowing what you were getting paid, and agreed to it by taking the job.
As far as tipping the robot, I'm sure the answer would be "the tip goes to the cooks and everyone else!!!" Let robots take the jobs so waitstaff stop bitching about it.