I'm sorry that you were bullied, many people including me in this world get bullied. People bully others because they're either jealous of you or something is happening in their life that is making them have mixed feelings, and they take it out on someone else, just to make themselves feel...
Usually, vanish is only for staff members, being a player means working together, if you don't want someone tping to you talk to a staff member about it, and they will stop it, I don't see the point of a member needing vanish for anything.