Most people get reported for verbal abuse rather than intentionally feeding.
And a few weeks ago, the LoL subreddit had the whole shadowban drama.
Why don't we mix them together?
Someone who abuses their team through chat can simply not be told that they were muted. They think they're talking to everybody else.
And the simple fact is, nobody can hear them on the other end.
The troll doesn't get angry, the players don't get angry, and the shadowban does it's job right.
Now we can all live in peace. The trolls don't complain on the forums (they don't know that they've been shadowed), the players don't complain about trolls, and Riot can work on more important things. Life is good.