I am attempting my own solution to this called @freezepeach. It is a service where people can submit opinion flags to be upvoted and resteemed. The goal isn't to reward posts that have been flagged for difference of opinion, but to neutralize the rewards taken away by the flag.
The account may look inactive on the surface since it was announced weeks ago, but there are big things happening in the background, such as custom voting tool development (to match flags exactly), delegation app to make it easy for the community to help out, and official support from the largest steemit community on discord.