Ask not for whom the Dale trolls -- he trolls for thee!
Fun idea, but would the monitoring and enforcement required be worth the effort? Even what constitutes profanity, especially with altered spellings, is not easy to determine.
Smacks a bit of Big Brother or Red Light Traffic Cameras or Utopian Ratfinking or Small Town Social Compliance.
Could inadvertently squelch honest dissent and constructive criticism even if sometimes clumsily offered.
Some might even revel in the notority of being chosen an Official Jerk and become even more obnoxious.
Then again, enforcement could be simple. One warning, two warnings, and third time account is cancelled.
(Thus emerges a new vocation: Aces High jerk appeals counsellor.)