She can get the web page banned on facebook through spamming the links. When you spam the links, facebook link redirector (l.php) resolves the links and if it is blacklisted, you get a warning. what this means is that if someone cicks on the link, they would be taken to some warning like: link is unsafe, are you sure you want to continue and given a chance to continue. This is bad if we wanted to trick people to visintg us, but good if we want people to second guess visiting us.
she can't really get us banned in the sense of anything outside of that, but she is a potential source for good drama.