devtrackers.gg
Really? Then i must've hit it before and didn't notice or something but this is the first I'm noticing I got plat this season
It caps at your max MMR for the current season, so you probably hit plat sometime before and didn't realize. BUT CONGRATS A SECOND TIME :D
Oh. So it can get you to an ever higher elo that you've ever been? Good to know. I haven't touched my PC in 2 weeks cause school and when I left I just reached my peek elo this season so I might log on today and check.
It can't. It won't go past your max MMR for the season.
Is the mmr rollback automatic?
Yup! You don't need to do anything on your end except send in reports if you suspect cheating :D