That isn't really rude. It's what he would do. If an owner commented on my profile page, I would most likely fanboy and brag to my friends xD
If a Owner commented on my profile I'd probably die. I would honesty fangirl and tell my friends not really brag, but be really happy, and go jump out a window if they did that.
If I ever see AStaffMember has liked your post, AStaffMember has quoted your post I get so nervous and freak out.