You know how a lot of the time your promo's get ruined by negative players?

I just thought of this like 2 minutes ago so this idea is definitely not in it's best state but what if we had a system that temporarily banned salty, negative and frustrating players from promotional games? There's always that same scenario.. You work very hard to get to your promos, youre finally there and then they get ruined by a toxic player, either them feeding on purpose or just overall bringing the team down with negative attitude, they end up risking your own promotion. I know not every promo series is like that but its definitely still happening. So I thought that maybe with the improved report system, RIOT could also make it so that if the player has been a negative player the past few games or just "trolling" in general, and by trolling i mean feeding on purpose or afking on purpose, then they arent allowed to play their promo's , for a little while, so that they themselves cool down and also don't risk the ranked promotions of other players. Or just temporarily banned from ranked in general, considering most of the time its only one or two players on the same team in their promos.. Anyways I thought I'd just pitch that idea..