Talking about etiquette, what annoys me more are french players who say "Salut" or "Bonjour". It just looks like they are greeting only the french players in party which is rude. Or they assume that everyone speaks their language which is arrogant. I've never seen germans do that, seems to be a french only thing. I mean, they could just say a neutral hi/hello or use autotranslate. Not just ingame, I've noticed that french often outright refuse to speak english, even if they are able to.