With relation to this Question which is about editing the question makes a comment meaningless, today I saw another situation where when a comment was flagged and deleted comments following the flagged comment, became meaningless as in this question.
In that scenario, after Jon Skeet's comment (2nd comment), other comments address the now deleted 3rd comment by the OP, which insulted one of the commentors. And since it is deleted, those comments following it, make no sense.
How can we avoid such a situation?