WARNING: Different ranks for each position is going to destroy this game and here's why:
I know you all dont wanna spend 50 mins reading this crap so ill make it short.
1. A new era of unfair matchmaking I don't know the details just yet, but can't a jungle main queu for mid and then switch with someone else? Possibly creating an incredibly unfair game. We already have pretty unfair matchmaking at times and this will make it 10 times worse. Also, players will be playing more games where the system won't know where to put them since each offrole is basically a new account with unstable mmr.
2. Grinding 1 ladder is already tiring enough So if you play all 5 roles, you gotta play 50 placement matches? Then you gotta grind each role? I don't want to have to go into my profile and see 5 diff leagues, 4 saying unranked because I refused to do this.
3. Loss of sense of belonging This one is a bit more subjective. Being in 5 different leagues feels really weird, and in my experience with other games that have a similar system, it loses the meaning behind it all. Having a bunch of leagues somehow takes away the sense of "that's where I'm at" and there is **zero connection with your league **anymore. Plat adc, gold jungle, silver mid
4. Takes away player merit I can already see the role shaming "dia with supp only isn't diamond!!" "get dia in all roles noob!". The current system just says if you're diamond you're diamond no questions asked.
I know a lot of people are going to instantly downvote because they want to play their offroles but I strongly believe it will overall be bad for the game.
What you guys actually need to do is make autofill less common and add that new league to split silver in 2