I can see both sides of this one. One would hope that trolls would pretty much immediately lose their posting ability if not their log-in too. On the other hand the moderators could use the number of people that a given user has ignoring them as a way to profile the people who should possibly be banned.
As for the tilt thing, I would rather just see a filter that simply does not allow you to post foul language. We have that on the Florida Pinball Forum. Post a bad word and it gets changed to something like "daisy". Replacing the rating system and tilt with a "thumbs up" and "thumbs down" choice would do away with the tilt trolls who are looking for a way to disagree anonymously with a post.
John