You're going to run in to this in any MMO you play. That's just how the internet works. The anonymity of a computer screen brings out the worst in people. We're actually very lucky in FFXIV. The community is a lot better than most. That's partially due to the over-the-top limitations built in by the devs. They chopped out many features to prevent any form of griefing or harassment and put massive restrictions on others.

As you're new to the game (welcome, BTW) you probably haven't noticed it yet, but we are pretty severely limited in a lot of aspects so as to prevent anyone getting upset by anything another player can do. Its nice at first, but as you watch restriction after restriction get put into place, it sort of makes you resentful.

I'm sorry you had that experience, but asking for further limitations really only adds to that resentment. I'd recommend finding a good FC and running things with them.