While I was checking the rankings of the Dark Chess ratings list I noticed a little square thing after some player's handles. When I hover the cursor over it, it will let my click it and send me to the game invitation for that player. What I don't understand is why some people have this after their handle and most people don't. Or if it looks the same for a different person viewing the same page. Or why some people have it for one game, but don't have it for a different game. I looked around the site for an answer, but I wasn't able to find out what the deal is. Is this something I can turn off or on? Does it involve the Friend's list? Where can I read about it on the information or FAQ page as I didn't find it in either place.

By the way, the "Help" page is a real nice layout. It's too bad there's no information there! Least ways on the links I clicked on I got most blank pages and no help.