I don't know who thinks or thought that you should cut a round pizza into square "slices" but they're wrong. Yeah, I said it! I've seen pictures all over Twitter and I've seen this debate going on for about a week or so now. There really isn't much of a debate on this one. A round pizza should be cut into triangle slices. This seems to be a Chicago thing but they also think that deep dish is better then a nice thin NY style slice, so I'm not sure why we're listening to what they have to say. Rectangular (sicilian style) pizza is cut into square pieces, round pies are NOT! If you take the time to read all the responses on the Tweets below, you'll see a whole host of wrong people too.
You are welcome to try and change my mind about this but it won't work. There is no reasonable excuse to cut a round pizza like this -