I do not agree.

Let's play with that theory. Why should RIAA seperate gnutela clients into "good" and "bad" and why should gnutella servants with metadata be more bad? You can trade music, video, cook recipes with any gnutella client. Forbiding one client makes no sense, users will switch over to next gnutella client etc.

Metadata is an important feature which all gnutella client should and will provide. See former GDF (gnutella devloper forum) debates and the high user demand, I guess metadata (Mp3, video, PDF, Word, whatever is popular) will be part of the protocoll soon. Gnutella isn't music, Metadata isn't music.