In a game where everything is decided by the roll of the dice, it's no wonder some gamers get irrationally angry at their inanimate dice and feel the need to publicly shame them for their 'misbehavior.' It's funny to see how Dungeons and Dragons players treat their dice as if they are a spiritual entity that has a mind of it's own and can be appeased (or angered) by certain behaviors.
Some players kiss the dice before rolling them, some whisper a little prayer to them before an important roll, and I've even seen players outright talk to the dice, making promises or idle threats as if the dice could actually hear them. Well, these players took it a step further and decided to publicly shame their dice so that everyone can see just how 'naughty' their dice have been, perhaps in the hopes that this action will force the dice to 'behave' better in the next session.
Translation for those who can't read the font: "Because of me, my owner got knocked off his feet five times. After the fifth time he gave up, and didn't get up until the fight was over. Then he tried to lie about the reasons, because of me he also failed to tell the lie. Now everyone thinks he is weak, pathetic and a coward."