So me and my friends have this discord group chat we talk in, since using our normal texting group chat always lags my phone. Since it's a discord chat, anyone can change the name and title of it at any time. Me and most of my friends love to change the title and picture to stupid things, but one of my friends hates it's and always changes it to something she wants it to be, and then calls us children for having fun. How do I tell her to chill out without being rude? I don't wanna stop being friends with her, because shes honestly not a bad person, I just want her to stop doing this.