I don't think someone's comment should be flagged simply because you don't like or agree with what they said. If the comment is an outright abusive personal attack, then it is possibly warranted, but other than that, no. I think that in order to preserve freedom of speech and avoid excessive censorship, there needs to be an appeal process for unjust flagging. If the flag is found to be retliatory or unwarranted, then the flagger should get penalized. That could help to mitigate people flagging others just to be jerks. I certainly hope that this platform will continue to be an uncensored place with a free exchange of ideas and not have an atmosphere like FaceBook (aka FascistBook).