You might (or not) know that I've been doing quite a lot of thinking and research about multilingualism online (search for "multilingual" on my blog), and one thing I've been dreaming of is a truly multilingual support community.
Satisfaction strikes me as a great opportunity for this. There are quite a lot of strategic/technical issues I'm not going to detail here (yes, it's complicated), but I really think the web needs more spaces where "language management" is close to what it is in real people's lives -- not just a series of linguistic silos.
Customers are not all English-speaking -- and as most people are multilingual, it doesn't really make sense to break up the communities by language.