Are you afraid of the entertainment industry? Does your country have stupid copyright laws? You don't share because you are afraid you get caught for doing so? The newest versions of Kazaa Lite (2.10 build 3 and newer) have the solution for you!
It is now possible to prevent other people from listing your shared files (find more from same user). Go to Options -> More Options. There you can enable the option to prevent people from listing your shared files.
There is just one little downside to this, because it may let people think that you are not sharing any files. But for some people privacy is what counts. Enabling the option doesn't mean that you don't share files anymore! People just can't list your shared files anymore. In fact more people should be able to start sharing because of this.

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I do prefer LimeWire now though...more reliable.