Since the release of Overwatch Blizzard never really revealed how placements work. So I was curious and stopped playing on my main account in Plat and created a new account.
After my 10 placement matches against first Silvers and Golds then Diamonds and then Masters I got placed in High Diamond/Low Masters in which I definitely don’t belong. ( I believe I belong in Plat)
So to confirm that the Placements really aren’t working properly I did the placements on my main account. I played the same heroes and performed overall the same and got the same Win/Loss Ratio (+/- 1) but got placed in low Gold.
So my guess is the system just wildly overrates new players and simply puts returing players in the same rank or lower that they have been last season.
TL;DR I understand this system makes sense to some degree but placing the same player first High Diamond and then Low Gold is very confusing. So I think the system might need some rework… ¯_(ツ)_/¯