Riot are you here? I have some Ideas (".... or troll" protection)

This is my first post here. I create it because i got enraged by top or trolls, trolls and those who do not respect pickorder. I would not create this post if there were not some obvious solutions, I´m gonna write two best of them down:

1. Add chat filter to champion select and maybe all game, that first warns the player and if he does not stop using "or troll" phrase, he gets punished accordingly

2. Add report button to champion select . If 4 people in team report 5th, something is going on there, the 5th could be disconnected and other player could connect. This could be misused and prevent rare picks on the other hand, so 1 or 2 reports should not matter.

So, can anyone tell me, why these obvious things are not being used?