Well, we all know players like this.
Dunning?Kruger effect - Wikipedia, the free encyclopedia
The DunningĖKruger effect is a cognitive bias in which unskilled people make poor decisions and reach erroneous conclusions, but their incompetence denies them the metacognitive ability to appreciate their mistakes.
How did you learn to play poker? By playing darts? - The Grand
All you need in this life is ignorance and confidence, and then success is sure. - Mark Twain
Prosperity supposes capacity. Win the lottery, and you are an able man. Have but luck, and you will have the rest; be fortunate, and you will be thought great. - V Hugo