Competitive Cooldowns for Poor KDA

I propose an system which would act as a deterrent for trolling and tilting.

It would work like so:

If your KDA in two consecutive games is incredibly low (less then .25) AND your team loses AND you receive reports against you. If your KDA over a series of games is incredibly low (less then .25) AND regardless of if your team wins or loses AND receive reports against you.

You will be given a Competitive Cooldown which will lock you out of ranked games for a short period of time. Repeated reports against you may effect this cooldown.

Cooldowns: 30 minutes <--- First time 1 hour <-- Second time in the same week 4 hours <-- Repeat offenders 8 hours <--- Repeat offenders 24 hours <--- Repeat offenders

This would prevent a few things which really hurts competitive game play for everyone. 1.) Players who bring new champions into ranked immediately with no experience. 2.) Players who actively engage in intentionally feeding. 3.) Players who are tilted, but refuse to stop playing.

I'm not trying to punish players who are still learning, but rather I would encourage them to learn using normal games. Ranked games are ideally for people who want to give it their 100%, and they dont deserve to deal with trolls, tilted players, or just plain poor choices.