Possible Duplicate:
Allow flagging a comment after upvoting it
The Scenario (which happened to me today)
- User posts a comment to an answer "Hey, your answer is 100% incorrect"
- I agree, so I upvote comment
- Answer is edited to be 100% correct by somebody
- The "Hey, your answer is 100% incorrect" comment is no longer constructive, nor relevant
It feels like serious overkill removing the flagging functionality from comments that you have upvoted.