I think that should be my new title at work. Mind you, I'm not the one spread the gossip, but people tell me all sorts of shit and then say "Uh, don't pass that on, I didn't intend to tell anyone that."
This isn't a new phenomenon either. I knew all the dirt at the Big Evil Hotel, too. And before that at the Grand Canyon, I knew all the good tidbits as well. People who hated each other would talk to me about the other person, knowing full well that I spoke to their enemy on a regular basis. Why? Beats me.
One of the HR Directors I've worked with (who happened to be younger than me) explained it like this. "You're like Canada. No one really cares what you think, but they know that you won't be all judgemental." I think the fact that I never share anything that someone asks me not to helps as well. I'm also not really interested in the office politics and career building that many of my colleagues are. For me, hospitality isn't a life-time thing. It's just a job I do while I finish grad school and work on a real career. (Preferably writing, but teaching as a back-up.)
So, in short, I don't really know why people tell me their shit, but I do have some theories on the matter. All I know for sure is that I know more about the people I work with than is probably healthy for any of us. But hey, it does give me some neat ideas for stories... and I have the strangest dreams.