Until someone comes in with a valid option, MyAnonaMouse has open sign ups with a relatively short interview. That was my first private tracker and I passed the interview despite barely knowing how to torrent. I’ve heard invites are easy to come by if you know someone, too. Ratio is incredibly easy to maintain, too.
It is not a public tracker, and as such does not answer your prompt. Just wanted to provide a stopgap until a valid option is suggested.