>A far more elegant solution is to use some sort of filtering system (like Akismet). Such a system can run behind the scenes and work without complicating the u

>A far more elegant solution is to use some sort of filtering system (like Akismet). Such a system can run behind the scenes and work without complicating the user experience. I disagree. An automated system that calculates the probability that user data is invalid will inevitability report false positives, leading to blocked or deleted content. Try explaining that to a user.