Is there some "sociopath" cron demon on HN that downvotes posts based on being "too popular" or "responded too quickly"? Edit: it appears to be a "karma balanc

Is there some "sociopath" cron demon on HN that downvotes posts based on being "too popular" or "responded too quickly"? Edit: it appears to be a "karma balancer" that docks points in a thread if it measures participation as unbalanced. That'd be my guess.