User blog comment:Texas Snyper/Elo Hell and You: Part 1 - The Impassable Barrier/@comment-118.208.241.108-20110908100332

The problem arises when he doesn't believe that his Average Joe status is appropriate and believes that his skill level is above that of Average Joe.

aka dunning-kruger effect en.wikipedia.org/wiki/Dunning-Kruger_effect