Thanks for this. And for the paper links as well, will give the a read.
I find this topic very important and exciting as well.
HIve being a social blockchain actually has an advantage (IMO) for creating efficient reputation systems. Some basic parameters can be put in place an build from there. New account, zero activity.. low rep... for example.
The delayed voting on new powered up stake is a step in this direction.
Will read more about this topic :)