Ricter, almost all that data is going to be biased if you don't know how to interpret it. It's like me posting data from Jim Chanos who is a notorious perma-bear and saying he spends all his days focused on the topic of markets and he says the markets are going to crash. That is not say he is wrong, but again, remember what I said about financial bias. You just are ill-equipped to properly have this discussion. For example, when examining data on the restaurant traffic in Seattle is it possible that the overall economy in Seattle also improved over that same period which led to a proportional increase in restaurant spending. In fact, most of the east and west coast saw strong upticks in their economies since 2009 that was more then likely the effect of increased restaurant traffic. Also, Seattle, a rather progressive city by most estimations has a much smaller percentage of "fast food" restaurants. Their eateries are more expensive then fast food and so they are not going to be affected by an increase in wages. Try doing that in Ohio and get back to me.
Just to give you some background here Ricter, the general idea here is, raising wages is not a bad idea "if" the market is providing a sub-optimal level of pay. In that case, raising wages can produce a positive effect but only if that is the case. In most cases, you will get a more efficient outcome either by simply letting restaurants keep the current wage and simply offering the equivalent increase in the form of a payroll tax cut or simply increasing welfare in the form of a tax credit to the poor workers. This would not alter the input cost for restaurants and would achieve a superior outcome for the poor.
The problem with simply raising wages especially for fast food is that those restaurants do not have the ability to pass the increase in food costs on to the consumer. As counter-intuitive as it sounds, you WANT them to be able to raise prices. The problem is its shit food that no one will pay a premium for and rightfully so. There are industries though where you can pass the costs on to consumers and they will absorb the burden while at the same time allow higher wages to be given to employees and that is where economists want to see wages increased. But fast food restaurants have no pricing power so increasing their labor costs while leaving them powerless to raise prices squeezes them on the margin which means any business operating on the margin will go out of business by economic definition. So I don't think I'm going to get anywhere with you on this until you learn economics yourself vs passing the baton to a fellow blogger to speak on your behalf.