Got Reported Last Night for Nothing

I got reported last night on psn because a sore winner was accusing me of stealing his kills and ruining his kd.

Playing tdm, no big deal, and a player accuses me of stealing his kills twice in chat. Mind you idk which player he even was so idk how I was so methodically ruining his career? He told me it's my fault he did bad, I told him it was his. Our teammates laughed, which to me said nobody else felt that kind of way.

He then dm'd me on psn and left me a voice clip saying some vulgar things and referring to me as a slur. I blocked and reported him and his voice clip. But then, I woke up today, to find out I got reported somehow and received a warning for misconduct. It's annoying but funny honestly.