I know that it is very frustrating when the people in front of you stand up. For Thursday and Friday we sat behind teams that would stand sometimes. Most of the people in my group either stood up with them. For the guy taking pictures he went down and asked them if they would please sit down for future matches because he was unable to get the shots that he wanted.
On the other hand, when our team would score big our entire team would stand up and cheer, and sometimes not sit back down because of the hype, we did not know that we were even doing it.
I did see some people looking mad
while they were yelling at the team to sit down. I think that people need to remember that everyone is there for a good time, and no one is standing in front of you just to make you mad, and if you were polite and asked them to sit, they would.