Remember when publicenemyno.3 said its so simple? And i said no, there's a lot more to it? This is what i'm talking about. I'll try and explain before i have to clock in.
Basic BitTorrent: If your torrents have a high number of seeders (uploaders), with a low number of leechers (downloaders), then you wont be doing much uploading. So your ratio will stay low.
For example, say you're downloading:
So there are 181 people fighting to upload to the only 4 people downloading. Its not going to work.