We actually discussed it among ourselves. It is a good question. When I award sats for best five posts in the bitcoin beginner territory, I stopped being bound by strict zaprank. In practice, it has turned out to usually be accurate, at least from my narrow and probably biased perspective. Either that or I'm lazy. I do reserve veto power there. I do think zaprank should be used in judging, but I wrestle with how much it should be relied upon.