I forgot about this issue... I was trying to contact their admins but as nice and polite as they sounded, they just kept replying with: "Ask another admin" and similar replies. The man in charge hasn't answered to my post so I'm not sure I can do anything more.

Maybe more users should try to ask for help...

I looked.
The topic which states which clients is banned there looks very much like an older copy and paste from bitme. The banned reason for version1.2 is still there.
But there is good news, a moderator there wrote in the forums that KTorrent "should be working now". So they are probably trailing it right now.
hxxp://bitsoup.org/forums.php?action=vi ... 606#481606

Funny you should mention Bitme. I posted addressing the admins there in the past week. After my appeal, they unbanned it on a trial basis even though FAQ has not been modified yet. I am confident it will stay unbanned as ktorrent has been behaving. Unfortunately, my electricity hasn't been but I'm sure that they can figure out why I had ghost torrents a few times yesterday and day before. I did restore an image of my Linux drive just to be safe, after all that