Applejuice

Applejuice is a eMule leecher mod which has at least the following bad features:

• Doesn't provide sources, which violates the GPL. Might contain bad software, but it's impossible to tell without sources. Distributing this mod is illegal.
• Uploads to applejuice clients first and then has little upload to other clients.
• Thief nicks
• Make browsers show ads. With the needed extension, show ads for an expensive Usenet server too.

This bad leecher mod gets slow upload, or gets banned, if it's detected by mods with anti-leecher protection.