Hello guys!! Have you encountered satisfaction or happiness in your life? Does it cost too much Money?

1.Who arranged the most number of contest? 2.Who CoOrdinated the most number of rounds? 3.Who participated in the highest number of rounds? 4.Which post is the most downvoted post? 5.Which is the most upvoted post? 6.Who solved the highest number of problems ? Please answer me on the basis of year 2021. MikeMirzayanov please make a list