/r/sanfrancisco mod here. It's a tough call, and one that Reddit Admins (not mods) have mostly decided for us. The worry is this: an abusive ex could post a "missing persons" alert for someone trying to hide, and get their location.

So, we have a rule that a news organization (which has more of an ability to vet a story, as well as a "the cat's already out of the bag" effect) has to cover it before it can be posted – and you'll notice the story is now on r/sanfrancisco since one did.