How to evaluate the behavior of the audience pulling banners and advertising at the women's volleyball award ceremony of Rio Olympic Games?

As we know, the Olympic Games is a world-class festival that transcends all ideologies such as politics, economy, race and region. Banner ads will spoil the atmosphere of the game. I think the Olympic Organizing Committee must have relevant regulations (it is said that admission is forbidden in the 2008 Beijing Olympic Games), otherwise so many countries with different languages will participate in the competition, and all kinds of written content, whether for business or other purposes, will definitely mess up the stadium!

The women's volleyball final attracted a lot of attention. However, I noticed that many netizens on platforms such as Weibo and Post Bar criticized the behavior of pulling banners to advertise. Although Hanzhong has received some attention, this behavior itself has had a negative impact on the image of Hanzhong.