I also hate people which record concerts and thus obstructing my view, but I can understand the reasoning behind them doing that. There are artists whom you see for the first time, maybe paid a couple hundred dollars for the concert, and some people would like having that memory forever. Our brain can't hold memories forever, while that recording can be held forever theoretically, and can also be shown to other people. Not to mention the fact that it can be shared on social media.
Well, you can't blame them for wanting to document the artist's concert, right? I would also get annoyed if my view is being blocked in general, but I would be more annoyed if I am being bumped and pushed on when I'm in a crowd.
