If you truly feel a member is impersonating a specific person you can report it. But please use a ticket and don't post it in the forums.
https://support.chess.com/customer/portal/emails/new
However, just using an image from the internet as an avatar doesn't rise to the level of impersonation.
Member name [name an link removed -- MOD]
It is a fake profile using a stock pic of a model from the net. Chess.com staff members please take action. Fed up of such fake profiles on this profile. They could prove to be detrimental to the image of this site.