You cannot reason with trolls. They are not here to play chess or improve their chess skills, they are just here trolling, and writing useless comments, or posting childish images.
And even worse, there are some trolls who don't even know how to post pictures!
'quarki is my friend. He's not a troll, and he is a very smart kid. So lay off him.
However much I appreciate your concern, please don't tell them to stop; it's hilarious.