This is a money saving thing. No more no less (Score 2, Insightful)

This has nothing to do with the number of people using the service but rather it is all about money. There has been an ongoing battle over the last few years against bandwith abusers who cost money to the big Ontario ISPs in Canada. They argue that even though when you group everyone in the profit per person is extremely large they believe that no one should use 'unlimited' to the extent that they get there moneys worth (and I can kind of see their argument - though I disagree that this is the way to do it). A couple of years ago Bell (the DSL competitor to rogers) introduced user limits of around 5 gigs per month. This led to massive subscriber loss as everyone bailed to Rogers. Rogers secretly introduced this in a few years later and now this to lower costs as the usenet users are usually high bandwith users. They'd much rather them use google forums which are file-less. Bell has since got rid of its bandwith limits but its usenet service has 0% completion on binaries so they can subtully prevent mass bandwith usage as well.