This idea is similar to one posted by someone in another thread.

Either way it is discriminatory: I share 2GB of files, most of them obscure classic pieces by Ligeti, Tallis and Orff. Should my download speed be throttled simply because the files I share are not popular?

As far as I'm concerned, I share - usually 24/7. Although I receive very few upload requests, I know that I share files that the masses are not interested in. Does this however class me as a freeloader, or even a 2nd class citizen?

To say it's not cheat proof is incorrect. I can start two servants and download one from another with no great difficulty.

If such a mechanism were to be put in place, you can bet your life that people would massage the figures very quickly. They choose not to now because there is no reason to, give people a reason though and you'll see why the phrase 'necessity is the mother of invention' is so apt...

Rachel