I'm also 50/50. I will admit that the OP makes a strong case for it, but I also can't shake the feeling that such a feature would also promote illicit activity. It's a double edged sword. Somewhere in the middle is the concrete thought I have that believes if you play the game as intended, the less likely you are to be harassed. Making yourself stand out in any way also increases the likelihood of being harassed and stalked.

Even with the option, there still is not a method that works 100% to avoid being harassed. Having to make yourself private on lodestone, changing your name, switching servers etc. are all things that inconvenience the player much in the same way a person will change their phone number or email address to lose the trail of someone they don't want following them around. It also makes thing inconvenient for those of friendly intent if they want to show their support.

Like I said, it's a double edged sword and it's better to just play the game along with being very selective with those you allow into your social circle.