Do you think it is a good idea if members' of the forum can easily change their display name (if this option is still available), i know it could seem cool for some members to edit their display name how they like and when they like, but if it is that easy, it could also be abused. Maybe it is better if only admin can change display name or if you set a restriction to it, I.E. member's can only change display names once in 12 months.