I'm a TWC customer and came home one night to find my computers not able to get online. It was really weird, the cable modem got a DHCP address, gateway, DNS info, etc but I just couldn't get to any online locations. I called tech support and they said I had been "quarantined" for a Copyright violation notice they received from the MPAA / Viacom. Apparently they didn't like my sharing of a couple episodes of The Mentalist.
That really pissed me off because at the time, I couldn't view episodes at the CBS website, they weren't on Hulu and I couldn't get them through iTunes. Also, there were no Season boxsets available for purchase. So if I couldn't watch it live or if the DVR didn't pick it up, I was out of luck.
Tech support basically told me to stop doing what I was doing and there would be no problems going forward. So I did. Maybe I'm a coward, I dunno - but I just don't want to tempt a lawsuit.
In all fairness, I think I got popped because I was using TPB. Maybe I should just stick with private trackers that use encryption or maybe that doesn't really matter and I'll get popped anyways. Still haven't decided what I'll do going forward ...