although the main language at pokerstars is english, i always see a lot of people simply speaking in russian or whatever language and there are only a few people who are really bothered when someone speaks a language other than english. Of course, I don't mind if people speak another language, but it is a kind of politeness when you speak the language that is considered the main language due to the general unity. Learning another language is harder for one person than it is for another, and I have great respect for those who can do it. But personally I hold back more or less in the chat and sometimes I also turn off the chat so that I can concentrate more on poker. when people play collusion then i don't think they will discuss this at tables because they don't want to be caught. And even that doesn't interest me when I'm playing poker because even if people do that, that doesn't mean they'll win by a long shot.