What that last above line from Peerless means is that you would be running something such as

5 Files being downloaded by you with perhaps 10 different sources per file.
NOT 50 files at once as he clearly states.

Again... Do the simple math...
5 Files Downloaded from a total of 50 different sources with an average of 10 sources per file...

Assume that the minimum that should be accepted is to at least achieve a 56k Dial-Up 'standard' per source...
@ 3kBs for a nice round number...

That's a 'crude' answer of 150kBs...
Crude because it does not include all of the traffic taking place which is not directly related to basic 'file data'...

Now... Just remember that what is common in many clients today is a default setup for a 256/128 ADSL user of 8-12 Download slots with 12-16 sources per file...

Hands up everyone who has that kind of actual bandwidth !!!

Add the bandwidth required for Uploads, search returns, 'Browse' returns, others search 'hits' on you...

Net result in past two years with Gnutella Network ?
The majority of file transfers are now slower than with basic 56k / 56k...
Progress ?

Less = More