A little knowledge is a dangerous thing
Also known as Reaching Beyond The Bounds Of One's Ignorance...
The condition whereby a weak player reads a few articles on SL, likes the idea of, say, a 4-4 point low approach one-space high pincer, plays it against a stronger player and then wonders quite why it all went so horribly wrong.
Also frequently manifests itself as an impulse to fight a ko because one knows how, without having the first clue as to whether it can actually be won or not, and in tendencies to play a move based on a proverb rather than a reading of the game, although fortunately there is an antidote to this sin....
Not that I'd know anything about any of this, of course... ;-)
"A little learning is a dangerous thing; drink deep, or taste not the Pierian* spring: there shallow draughts intoxicate the brain, and drinking largely sobers us again." (Emphasis added)
-Alexander Pope (1688-1744), _An_Essay_on_Criticism_.
( * Pieria is the region in Greece in which the muses, the protectors of art and sciences, and sources of inspiration, were thought to dwell.)