The issue with private trackers is that you end up downloading stuff only to seed it because its like some bonus point torrent. The other trick I would use was to grab the torrent hash and see if it was on DHT without the private tracker which sometimes happens. You can then add the private tracker back to it and remove the public DHT trackers and reap the benefits of pure upload. Sadly both of these require you to play the system a bit and who the fuck has time for that?

EDIT: In other words there is a warm up period for torrent accounts on private trackers that can sometimes last around a month or two depending on if you get onto a site with a generous bonus point system you can learn to use. If you mess up this break-in period your account will always be in shit status and you might as well delete it and start over.