I find it every Frustrating that when I endure a toxic game, sit in the lobby contemplating what just happen and go through the process of reporting a said player/s that ruined my game; then when I jump into my next game they're on my team again. 
Can something be done about this or does the Number on MOBA game in the world simply not have enough players that they can't make this an option?[zombie-brand-facepalm]
Blizzard used to allow people to have influence on the matchmaking by actually blocking players to not get matched with against. This resulted in the best players basicly beeing unable to play the game, since people just blocked them to have easyer matches. Thats why they stopped doing it and Riot wont introduce anything like this.
If I ever get a game where I had to report someone for being toxic, I usually just wait a minute or two before entering the queue again.
Go take a bathroom break or get a drink or something if you really don't want to have a chance to get matched up with the same player again.
i think it wouldnt be unreasonable to prevent a player you reported from being matched with you THE NEXT GAME ONLY. this prevents abuse. and mitigates the tilt factor of being matched with them twice in a row
