We should reset the Bronze-Diamond elo or whole elo system once every 2 season.
I feel like there is a problem when a person who has diamond last season gets plat usually plat 3-1 instantly and just get carried most of the time and camp it out in D5 for reward. Worst part I hate is when D5 players make fun of people with over 200 games when they are just camping it at D5 0 point waiting for season to be over and only playing 1 game a month so they don't get demoted from their reward. Some of these player are lucky to get to flow with pros to make it to diamond 5 real fast because of the start off point they get in placement.
Diamond is place where you strive to grow and reach higher not a place where people who got diamond last season gets lucky to get diamond again and camp D5 until the end of the season for season reward repeating the cycle over and over again. Most of the time when you see a diamond player now a days they are practically all D5 with 0 doing nothing because of them fearing they will get demoted from their season reward.
If any diamond disagree then all I can say is if you are skilled enough to get to diamond then it won't take you long to climb back again.