if the problem is "so obvious", then we all would have to have the same problem. it's "marvellous" that only some (very few, actually) users have this problem. i will not repeat all the technical details which already have been repeated hundred times, still the same ones, only because some users are lazy to read and learn.
you say it's a scam and we "are pushed to donate"? then how can you explain that most of users have never donated to the site, and still have no problems with ratio, but you? i haven't donated as well, and yet i've had no problem with ratio at all.
today again, i've tested this (only because of you) with 3 different clients, and all reported the uploaded amount correctly. you say "no problem with connection" ~ i'm not refering to your internet devices, but the protocol filters on the way. it does have a big impact on this. this tracker uses TCP acknowledgments for ratio reporting, in other words: your client should try to announce as many times as finally successful. UDP trackers have bigger problems with this, for the sake of connectionless UDP nature.
at last: for the correct measuring, check the torrent counter in your client (not the global one !!) and the session counter on the site (next to torrents). if you refer to the global amount transfered via your client, and not added to your account, this is the real scam. a torrent user should know already that every tracker accepts solely the traffic generated for its own torrents only. i'm afraid that you still didn't get the clue what private trackers are …