But you are completely missing the point. I have no problem turning on a seed and letting people download from it. But when I do that, it takes away bandwidth from my downloads that are active, and in turn, I am punished because it lowers my download speed because my upload speed isn't as high as it could be.
I'm glad you have so much bandwidth that you can afford to just turn on a seed and have it not affect your other downloads. For me, doing that kills my download speed by at least 25%. If I could do what you suggest, I would in a heartbeat because I like giving back when I can. But I don't like being punished for doing so. There should be some kind of algorithim in BitTorrent/BitComet that can detect when you are seeding and removes the DL/UL ratio cap.
And by definition, I am not a leech. A leech takes something without giving anything at all in return. I give what I can. Just because I don't have a crapload of bandwidth like you do doesn't make me a leech.