Yesterday I reported a guy who was having multiple profiles. By doing this he is breaking the rules of Codeforces . He is also a Cheater like jyexohluop (May be he is not a legend like Karandi but he is no less.) I posted it in a public comment on this blog but all my comments and its replies were deleted. But how anyone can delete comments of others ?? MikeMirzayanov please have a look at this issue. Guys like Karan and AryaKnight are eating ratings of genuine users.