I have never "blacklisted" a player before.
Avoid player named: Gorriz
In this game, he had lost awhile ago. He keeps running the clock down to near zero and running away. Would be honourable to surrender about an hour ago.
http://WarLight.net/MultiPlayer.aspx?GameID=2702239
I don't know all the etiquette on blacklisting, but this seems pretty dubious behaviour.