I just ran a test with SwapNut. By default, searches only show SwapNut results, which means as a SwapNut user, you are going to be downloading from other SwapNut users and not from other applications. So this would be the complete opposite of what you were mentioning, SRL. However, other clients can connect to SwapNut users and download from them. So in fact, it looks like SwapNut is actually doing a great service to the Gnutella network, regardless of how much you hate them (been reading your posts in here.)

Now if BearShare would do the same, we would be styling! BearShare, PLEASE make it so that your software minimizes on closing and stays connected like SwapNut.