lulu, i think that the reason they are kicking off is that they are attritional in nature, basically you have to agree or disagree with the OP's reasonableness or otherwise, rather than address the issue at hand.
what a lot of (dull) people seem to want is to be told that they are right to be feeling irritated/wounded etc but the fact that it's a black/white, yes/no answer means that people don't have to pause to explain themselves if they disagree.
then the OP gets cross because people are saying she's unreasonable (almost as if she hasn't actually understood the Whole Point of the topic) and then it goes haywire.
so i think that writing it out long hand, as it were, might force people responding to pause and think about what they want to say, rather than make the snap judgement. well, you'd hope so, anyway...