Walter Montego: Of course discrimination exists on this site as it does everywhere else in the world. But I contend that discrimination based on rating is an entirely different ball of wax than segregation based on nationality. If you equate these two, i'm afraid nothing else I say will be of any value to you. So the Dark Chess tournament, had you been excluded on basis of being American, it would've been the same?

<Simple enough, so where's the problem?>
Oversimplification is the problem, and I do not see all types of dicrimination as ethically equal, even though they are functionally equal.