hmm what? (Reports)

Wth? i just finish a game i didnt say a word i was communicating with pings i carry that game i help everyone and in the end i got reported for "negative attitube" when i didnt say a word in chat plus i win the game (check my match history) and if that was a delay message i havent say a word in my chat for 50 games now or more and i always play my game and try to win (check OP.GG for more stats to see that all my games are good even the one that i have lost)

So wth is going on here riot? people just report others for no reason? and then i get a message that i was "negative"? wth?

And yeah i may not talk in chat but i was pinging

ex:? mid lane want the blue? i didnt type ok come i ping "assist me" top lane ask for gank? i ping "on my way" i dont really believe that i have to chat and i dont believe that this is a reason for report!!

So really? what is going on here? people just report for no reason?