How do you make money? Ad-Aware is also free, so what's your business model?
We do offer an enhanced version of Ad-Aware called Ad-Aware Plus, [which costs $15]. But money is not the primary goal and has never been; it's mainly used to pay the server and bandwidth costs. We all have "regular" jobs or are students, and do this in our spare time (although it uses up a lot).
If Lavasoft can do it, so can Gnutella client vendors. With open source you can use sourceforge and other sites to distribute your clients, so there is no bandwidth costs at all.
There is no excuse for a Gnutella client to contain adware/spyware.
From a interview with Nicholas Stark of Ad-Aware
http://salon.com/tech/feature/2002/0...are/index.html