Why the heck shouldn't I classify this as discrimination? He tried Hans, an Italian female name, and his own, I believe is Karim. And he gets less replies than any other.
He probably wrote a pretty darn good e-mail saying how educated and well-behaved he is, bla bla from Paris have degrees etc, but guess what, no replies. Just because of his name! That is what I call discrimination, and in Germany it is pretty common.