Some Viper on the enemy team asked if I was a bot and proceeded to say something like "there's no way a real person can be that random" after I killed them

Ok I'm a low elo player (iron/bronze even though I've probably played over 300 hours of this game lmao) so understandable but I never knew I played like a bot? Is it because my aim is absolute trash? Or is it because low elo players have low game sense (my friend [gold/plat] told me that low elo players are very unpredictable after playing a few games with me)?