I don't see why some people are complaining about this upcoming feat. Even if people aren't genuinely nice, it is giving them a reason to not be obnoxious or "troll" in a duty. You can be rewarded for being nice or pretending to be nice, and in the end this will cause more communication without conflict which will overall decrease chances of wipes and leavers.

Also, people who hit level 50 would have a reason to revisit lower leveled dungeons/ helping players. I think this will allow lowbies to get through content without waiting for crazy queue timers because most players are already at endgame. This could be abused by just spamming Sastasha, but including a diminishing return (only getting a rating from the same dungeon twice a day) would fix that. Level 50's should be recognized once they enter the dungeon as a level 50 character, so that party members can say "Wow, this person is level 50 and revisiting here to help me? Here, take my up vote."

So in the end, I think this might be a great system if implemented in this way.