The commercial corporations on Gnutella are the problem, including the ISPs. They are the weak link and the RIAA knows it.

1. Run a open source client
2. Push developers to write code that prevents the RIAA and ISPs from knowing what files you are sharing.

The commercial Gnutella client developers won't do it because its a law suit waiting to happen if they make a program that allow people to hide things.
Support open source clients any way you can.