why do so many people argue

I have the most kills, I have the most gold, I do the most damage, Im the highest elo w/o playing dynamic que. Yet in the normal games where silver/gold players are in them they allllways talk shit saying im bad and that im doing something wrong while they lose easy matchups against players worse than them. I just dont get why low elo is so ignorant l0l. Like if you knew something you wouldnt be low elo shit talking someone that actually knows what they are doing will just get you banned and make you look stupid so relax and learn a thing or two.