Congratulations, Abdelrhman. (To Ozren and any others, yes, you can see the Contest Holder's name once you submit an entry to the contest. It shows up on your homepage/dashboard. This has always been true.)
Congrats, but a little confused how you know a name of CH, he didn't mentioned and wrote a his name in brief. In this case, apparently a CH was communicate only with you, isn't fair from a CH side. Anyway, Congrats again.
Abdelrhman - Any freelancer cannot view a CH's name, only in case how you said when CH rejected entry and freelancers got on email a notifaction about that or on dashoboard. Your winner entry was # 14, so maybe you posted previous more than one this , how I see a yours previous entry is #5 (also rejected) and on that way you saw it a name of CH, how you said in above comment. And isn't true how you said that :" You didn't come up with such of this suggestion name so easily". You Won and You awarded, CH choosed a your suggestion, and how I said previous: Congrats again. Keep going. And one more thing a contest was sealed. It would be a fair when any true freelancer posted only one entry in any contest. And of course, fair would be now when a CH in this contest open all visible entries of suggestions rejected and non-rejected. Regards.