people cry and report because you give 0 fcks

so again today i got chat banned and im sure this happen because i had a game with a guy who was crying the whole match.....before the match started he first pick yasuo and proceed to say "im mid or top idk which depending on enemy picks" this to me show that he isnt confident with the champ he is playing but i didnt say a thing. During the game he gave first blood at about 5 minute having his wave push all the way to enemy turret but nobody really cared since it was a normal match. He than proceed to feed enough where enemy top and mid was so big off him not being able to control his feeding that the match was almost certain of the victor. I told him i was almost certain this was going to happen since what he said in lobby and he told me it was my fault for not ganking for him. So me and him went at it and he reported me after the game which cause me to have chat ban once again which i find really dumb because i even told the team to not say shit to me or about me yet they went on and trash talk so i only responded but im the one getting punish for it. Im posting this not because i want sympathy nor want people to think i want something out of it but im posting this because the way the system is set up makes no sense because 10 people can report you for not giving a fuck and youll be banned when there is nothing wrong with not giving a fuck or if someone just report you because they didnt like you and im sure im not the only one that this have happen to because ive seen people posting about these kind of things elsewhere.