HN can't become like FarmVille. The key element to FarmVille (and games like WoW) is -- you level up not due to skill, but by how long you play the game. In oth

HN can't become like FarmVille. The key element to FarmVille (and games like WoW) is -- you level up not due to skill, but by how long you play the game. In other words, a very skilled player will level up just as quickly as an unskilled one. On HN, karma is earned much more rapidly by "skilled" users, even though to get a high karma you must use the site often. Taking this away would rob HN of its most valuable asset -- karma encourages "skilled" users to post insightful comments.