People can say whatever the heck they want. It is the internet and when it comes to the internet, everything is just a word with no meaning. When it comes to videos games it turns into mind games, we insult and belittle our opponents to get in their heads. When people get angry on videos games they generally play worse so we insult to piss them off in order to have an advantage. I can bet you any money that people only talk like this in video games and not in real life. My only advice is to not take offense otherwise you are just asking for it. If you get offended by words then you are a weak person.