The newest contender in the fray - AtomWire:
http://download.com.com/3000-2196-10134926.html
http://www.atomwire.com/

Crimes against so far:

Ripped off Gnucleus yet only distributes incomplete source code because some of the additions are incompatible with the GPL.

Ripped off the LimeWire EULA but forgot to change the references to LimeWire.

Ripped off the KaZaA/Cydoor EULA but forgot to change the references to KaZaA.

Engaged in flamewars on the GDF for the last two weeks.

Ripped off chunks of web site from various sources.

Mass mailed all Gnutella developers.

And generally alot of whining.