So for example while you kill/assist or get 50 cs in a game you will get +1lp so if you do really well in a match and you lost 17lp in it if you have 10/0/7 and let's say 200 cs you will actually get 4 lp insteed of loosing lp. What do you guys think? Is it a good idea? What improvments it needs?
I would immediately start playing jungle, power farming jungle creeps, and afk farming empty lanes no matter what and so would lots of other people.
Besides, nobody would ever want to support.
The larger issue is, that you don't understand Riot priorities about what ranked system is meant to accomplish and what rank represents.
Anyway, Riot does want to distract people from the quintessential goal of winning matches. The latest distraction is the upcoming Eternals. You also get higher game grades, and cleaner stats. There might be an occasional mission that also provides additional (real) reward for things like farming, vision, taking objectives, etc...
But what Kelaga said... even though Riot wants you to continuously farm to get the S grade, that doesn't mean that continuously farming is always the optimal course of action towards winning the match.
You get lp from being on the team that tapped the Enemy Nexus.
