There is a much better Gnutella client out there, folks. It's called BearShare and it does these things, along with many others, to prevent infiltration of the Gnutella network. Also, as an added bonus BearShare actually looks nice and it does not have to "start-up" for 10 minutes like LimeWire does! It also has better controls and upload statistics!

Switch to BearShare, do the SMART thing!
http://www.bearshare.com/