Most of us know what purpose BitTorrents are used for. However there is no effective way of blocking BitTorrents without compromising on Net Neutrality.
If the ISP provider charges not for total volume of data but based on direction of traffic it can be effectively addressed. Most of the users of BitTorrents generate abnormally high volume (factor of mangnitude of 100 to 1000) of upload data traffic, than normal websurfers. The ISP can put an assymmetric charging scheme where the users pays more for higher volume of uploads, in that case BitTorrents can be effectively addressed.
This method requires no additional equipment (like DPI) to be installed and there is no requirement to monitor users. A simple change in charging policy can yield efficient internet traffic management.