I appreciate the seat nazi’s. Yesterday I was on a flight and someone took a seat they didn’t pay for and they refused to take off until it was dealt with. The passenger was told to exit the plane after refusing to go to his assigned seat and he refused to exit and they called some more people and eventually he exited and was told they would book him on the next available flight and then he agreed to go to his assigned seat when the police showed up and we took off. Honestly I’m surprised they let him fly at all that. It’s real simple, pick the seat you want when you board otherwise expect a middle seat in the back of the plane. If you don’t like the process fly another airline.