I think some sites/people are unrealistically crazy with being anti hit n run.
I was on a site, getting a torrent, slow as heck (the torrent was many months old), and decided screw it, I didn't want it. There were no leechers, I bet there weren't leechers on it for awhile. I got like 10Mbit, and stopped and this is hit n run. Damn, I should have seeded that 10mbit, it would have made a huge difference.