I had heard mention of this coal list. I expect without it some big accounts could take a lot of the rewards.
I have talked about normalising the concept of DVs here. People shouldn't take them so personally. They can just be about adjusting rewards, but also get used vindictively. I've far too much drama over this, but meanwhile thousands of people are happily earning something. I don't think it's as big a problem as some make out.
!BEER
I don't think it is such a biggy either but the ones that often get them tend to be the shouty types.
Whatever floats their boat if it makes them happy.