Unfortunately this is something you see everywhere in life nowadays. In the case of this game specifically though, I would put a lot of the blame on square for forcing people to accept that type of behavior by forcing the level of "toxic positivity" that this game is known for. If I typed half of the messages that I sent during heavensward dungeons I would be permabanned in a heartbeat today. Any chat messages that are even remotely critical make me nervous I am going to get banned after I got sent to GM jail in ShB for telling my black mage to use AOE attacks during a roulette. They are so rabid about banning people that I have gone out of my way to only communicate using auto-translate since the day I was jailed. If SE and the game mods allowed people to say what they want I have a feeling the community (and the game) as a whole would look a lot different than it does now.
Also, you have the type of people who will pull out the argument "What is common sense to you might be hard for someone else to understand!! Stop being mean!!!" Listen, most people don't truly expect everyone they meet to be a master of all jobs all the time. The type of people who cried about harassment when it was still (sort of) allowed are people who got flamed for doing things like not using CDs/stance as a tank, completely refusing to AoE, totally ignoring combos and doing like 70% less DPS than the other DPS players, etc. IMO people who play like that DESERVE to be flamed especially if they have had someone correct them and they just actively choose to ignore it. If it wouldn't get me banned I would have bullied these people until they either shape up or quit playing because they truly ruined the experience for everyone else. Instead we have a community that is overflowing with people who want to just stare at pretty lights while they drool on their keyboard and anyone who has a problem with it can't voice their opinion without fear of being banned and losing all of their progress.