What are seeders, peers, and leechers?
A seed is someone who has the full file and is still sharing. Users are encouraged to do this whenever possible. Peers are those who are downloading a file but have not yet finished. Leechers are generally people who download lots of stuff but do not share (thus missing part of the point of file sharing). For BT, usually a leecher is someone who closes their client within minutes after the download is complete. This is frowned upon by most other users. Some trackers actively kick people who have bad enough upload to download ratios. Sometimes people use the word leecher when they mean peer.
