If there was ever a client that should be blocked from gnutella this is the one. Yeah, we all know bs and lw prefer bs and lw nodes, but at least they haven't targeted specific clients to "leech only" from. The people who get screwed in this situation are the end users.

So take your client elsewhere, build your own network, and stop trying to do damage the gnutella network.

(And to reiterate what morg has said: Just because you use a different port does not mean you are using a different network! There are already plenty of us out there that run gnutella clients on ports other than 6346 or 6347.)