OP there really isn't anything to discuss This is just a video game , there is no justification for it at all. If you are getting "stressed " or "rage" that is a personal issue and under no circumstance should you "act out " in a way that RIOT does not approve or respond to someone acting out .
Its black and white no gray area to discuss.
Context should matter
Short answer
No it should not , every player is responsible for their own actions , words and responses.
it does not matter what is said or done in game no matter how bad you think it is if you do what RIOT thinks is a punishable offence it including responding /reacting to anything you don't like in game . You deserve a punishment tier.
Long Answer
Fact : Intentional Trolling in a game ( afk feeding leave buster avoidance etc ) is ban worthy
What alot of players seem to fail to understand is
FACT : responding / reacting to one in any way shape or form is also ban worthy and that is the way it should be .
Another misconception " but the other player did /said this .....you don't show the other side"
FACT: EVERYTHING other than your own words is IRRELEVANT as far as the punishment system goes
That is also has it should be .
So yes what ever you see /hear in game you are supposed to just "ignore it / let it go" no matter "bad" legitimate or otherwise you think it is,
Yes you may loose a "game" or "lp" but really its a video game if you are concerned about something that insignificant that it sends you into a rage and makes you want to verbally abuse other players ... ..you may want to look into that.
Taking that into account you are left with another fact:
There is never any "context" or "justification" for responding to, reacting to any Intentional negative chat , action or play .
Also there is never any "context" or Justification to negativity commenting on something you simply don't like or what you consider "bad play" of any kind.
As for players blaming punishable speech and/or actions on other players - that is also inherently wrong
There is no such thing as being baited. You cannot use that as an excuse.
YOU ( the player) control and are responsible for your own actions speech.
No matter what anyone does or says in game no matter how bad
if YOU choose to respond to it in any way the YOU rightly deserve to be punished as well.
also its not just "one bad game " that will get you banned, you can skip punishment tiers if Riot thinks the offence was bad enough however.
Chermorg (NA) - 12 days ago
Riot treats everyone the same. Everyone is given the same escalation pathway of punishments:
10 game chat restriction
25 game chat restriction
14 day ban
Permanent ban
The point of all this is If you don't like how random people, don't want the "risk" of someone intentionally trying to disrupt the game ( intentional feeders afk verbal abusive leaverbuster avoiders) play then it's up to you not to join a random que ,
As for there is a INTENTIONAL feeder or afk just ignore them and play as you would if everything was fine and report them after the game . Take no action ,of any kind in retaliation or respond/ react to them verbally.
Also If a player disagrees and /or ignores the above guidelines and continue to break them remember every player is just GUEST of Riot no matter how much money that player spent on their account and their Privilege of playing in this game can and should be taken away permanently,