You can give your players incentive to do things, but if it’s not the incentive they’re looking for they will probably demonstrate it by their in game actions. Some examples of player incentives include:
Internet News is All Wrong
Why is internet news so bad, why do people prefer celebrity fluff, and how could it be made better?
Silver Sable Sucks
This version of Silver Sable is poorly designed, horribly written, and placed in the game for all the wrong reasons.
This is Why We Can’t Have Short Criticism
Here's how this site grew from short essays to novel-length quasi-analytical retrospectives.
Grand Theft Railroad
Grand Theft Auto is a lousy, cheating jerk of a game.
Philosophy of Moderation
The comments on most sites are a sewer of hate, because we're moderating with the wrong goals in mind.