In my honest opinion Humanity in general is a species of selfishness and destruction. If they believe they can do what they want without negative consequences of their actions, they will do it 9 out of 10 times without remorse. The community in FF14 online has been conditioned to be nice. If you step out of line you get beaten down with all kinds of reports. People have dubbed this as "toxic positivity". Or in more simple terms "beatings will continue till you behave". Look at WoW the biggest reason why there is a difference between FF14 and WoW's community is there is almost 0 consquences for your actions in wow. So people feel embolden to act in self interest and believe it or not there are people who enjoy the suffering of others out there. You could ninja roll items in wow, you can cuss people out, you can kick them for any reason and never receive any consequence to your action. The only way for people in these fan fests to behave is to show that their will be consquences for their actions. Video record them, write notes of what they did and get their names. Then report them either to management or the police.