I would have thought the problem was support and moderation, how can the two English-language moderators function in an Italian thread. There would have to be 2 moderators appointed for each language.
There is obviously nothing to stop someone writing in any language. One way to get around no specific language thread is a convention such as [ITALIA] at the start of the thread which then becomes for non-fluent a sign to ignore. e.g.
[ITALIA] Anker è molto buono
These are the countries Anker off its own site supports:
Hence: English, French, German, Spanish, Italian, Japanese