What is SRE (“share ratio enforcement”) and how does it work?
As long as your cumulative ratio is 0.25 or higher, you’re allowed to join a torrent as a leecher. Any member, regardless of ratio, who has a complete copy of a torrent may join it as a seed. Any member, regardless of ratio, may upload and seed a new torrent. The rest of this answer spells out the rules for letting a user with a ratio below 0.25 join a torrent as a leecher. If your ratio is 0.25 or higher and you keep it there, you don’t have to read the rest of this answer. The SRE rules are based on an enforcement cycle. A cycle is 5.00 GB for users of Uploader rank, larger for VIPs. You can find out the size of your cycle on your Control Panel (click “User CP” in the upper right of any of our pages after you’ve logged in). Whenever your total download reaches a multiple of your cycle size, you can’t join any more torrents as a leecher unless your ratio is at least the required minimum (currently 0.25).