"Theatre etiquette." What is that?

"Something I am deeply passionate about is yelling at people. Especially when those people have no theatre etiquette. What happened to theatre etiquette?"

https://x.com/Rrrrnessa/status/1748669751373562224?t=nTcssHGp8Iu-l5rnfgfgeA&s=09

"It’s not just Israel on trial’..."

https://www.theguardian.com/world/2024/jan/18/its-not-just-israel-on-trial-bosnian-war-survivors-support-for-genocide-case