What can we do about the trolls?

So today I had yet another one of those annoying games where you get trolls and waste an hour of your time. I think it's good that people are not allowed to leave or dodge games, but for that to work well we should be guaranteed that our time will not be wasted. For most of us LoL is a game to be played in whatever little free time we have left at the end of the day, and we hopefully wish to improve as much as possible as players in that time. So it is frustrating when we have to waste our rightfully earned free time being stuck in a game where some awful person just decides to troll/afk/feed/flame and render the match not only lost, but also of little use towards our improvement.

That being said, I am not seeing the number of toxic player decrease even though I have no doubt most people will report them for their behaviour; I think that the punishement system does not work well enough. Although I definitely like the fact that some of these people get banned from ranked, I still think they could use some more time outside of ruining other people's day. I have been thinking about some possible solutions, such as: taking IP away from them, making them lose more LP in ranked, or just outright banning them from the game a few days at a time.

I am no expert on the matter, but I believe that as LoL becomes a bigger and bigger trademark, it should not allow its name to be linked to this kind of frankly terribly toxic community. And it seems to me like if people got punished harder for their behaviour, they would reduce it, as we saw for the chat restriction system and extreme toxicity bans which I believe brought a pretty good improvement to in game chat. Another feature I would like to maybe see in the future could be actually knowing what happens to your report submission, a bit like Facebook did when you flagged a post as inappropriate. That would probably encourage people to submit more accurate reports and maybe give people more faith and insight on what the system actually does in the real world.

I hope some of this can help create a better game experience for everyone, thanks to those who stuck with reading this.