Ms. Mars, there is plenty of people who are like that, and they will refuse reason to be nicer to others. You'll see that everywhere in every forum. Over at ZU, there has been a few cases of bullying and people did leave, and some really did hurt themselves to where they did almost kill themselves and never to return because it was a terrible experience for them. There is no forum that has 100% clarity and there will be a few people who will be mean to others, but all that we can do as a forum/community is to report those people and make sure that they will no longer do these acts of crime.
Honestly, the way how I see it, mod activity isn't on it because no one doesn't report half of the things that is being said to them, and what is posted and that is what making this community a bit crabby. Yes there are people who do play around with each other, and that is how everyone is, but the next person can be more sensitive and take it in the wrong way and thus, for them to not return. All that we can hope is a group to keep everyone happy and safe is to actually use that damned report button or tell a mod straight up "hey this person..." is doing such and such and I don't like it.
When I got bullied here quite a few times, I should of reported those people, but instead I did a few years on leave and hoped that these people would disappear (which they did, but one) but I can't do anything about it because then who would they believe more? A very well known, and fun member vs a newbie who could damage a persons reputation. Either way, someone will get hurt, never want to endure what they did, then thus leave a community altogether.