It's hard to determine whether people are sharing or not. Browsing has been proven to be not a reliable method of determining this! eg: One minute I can't browse someone or it shows zero results. 15 minutes later, the same person browsed may show 60 odd files, 20 mins later perhaps over 600. Later, zero again. Unfortunately the browse function in LW has not been updated in a very long time & was implemented a long time ago. The dynamics of the network can play a part in this. Free slots & bandwidth at a particular moment also affect this. Some clients are easier to browse than others. The later the version, the better the chances AFAIK.

Language support is up to your system I guess. On my mac, I can see both chinese & japanese files & in fact, frequently have such users uploading from me. Sometimes some characters don't show properly.