lol... I downloaded/uploaded over a terabyte of information one month on my Insight RR connection just for fun. I download/upload massive amounts of information (I have over 4.5 terabytes of hard drive space filled with music, DVD rips but mostly encoded HD movies at ~10GB a pop) on my connection every month. I don't seed (upload) too much because Insight's upload speeds vs. their download speeds are atrocious (RR Turbo gives you over 20mbps down and not even 1mbps up) but my friend leaves his uTorrent open, seeding 24/7 unless we're playing a game on Xbox Live. Neither of us have ever been caught, warned, limited, anything. Maybe we're playing with fire but we've been doing this for years at a ridiculous clip and nothing.
Only time I've ever seen RR access locked was when my parents' computer had what must have been a nasty virus on it because RR didn't want the machine on their network until it was fixed.