My dear Greek friends, I really don’t want to upset you in any way. I can clearly understand your wish and I would react immediately, if someone would delete you signature at the end of the subtitle or would steal your work. Many of us had that experience and it isn’t pretty. :)
Well, many other sites would delete your name, add their advertise and wouldn’t even answer that sort of comments. :) We, on the other hand, let you even advertise for other sites, if you choose so in your subtitles, not to mention how we take care of every translator.
We distinguish between uploader and author, so krvle don’t claim it would be his work. He and some other of us supply the site with fresh subtitles that are free available. You surely can imagine, that we can not ask every single one, if he agrees. ;)
As soon as our system updates, you will get the authorship for these. That’s all what I can do. If you still disagree, consider writing to our admins.
I see kvrle did already the explanation. :)