Being flagged sucks, especially when its due to something that is a positive.
Have you ever done something with good intentions, only to be shut down and told what you are doing is wrong? Well that happened to me.
I was accused of being a bot, and the person I upvoted decided he was going to abuse his position of power and use his influence to remove the little amount of money I accumulated. It really shows someone's true character when they go out of their way to try and halt others progression.
Needless to say, he did just that and some of my posts were hidden and devalued. It's sad to see someone do that, especially when all you want to do is share content and make connections.
Obviously flagging is necessary, and without it we may be overrun by spam and plagiarized content, but perhaps some amount of revision is required.
Have you ever been the target of a power abuser? How did you tackle it?