I've never been all that wild about Facebook. I use it as there are some folks who only communicate on FB and I'd lose all touch with them otherwise. That doesn't mean I like it. Case in point: Yesterday I responded to a rolling conversation Do you think ghosts live in two dimensions? I said yes. Well, I got this hot comment about there's no such thing as ghosts. And then this guy tracked me down on my personal email and blasted me again.
I have as much of a right to opinion as this guy does. Simply put, they say you never really believe in ghosts until you've encountered one. I've worked at two haunted hotels. I've encountered a few different types of entities. I don't entirely understand it--but they sure as hell exist.