Probably a vain attempt to retain a little anonymity. There's lots of giveaways though when you start posting for long enough.
You think about it though, if you post up that you are attending a Myswag meet on a certain weekend, and your location is pretty obvious from previous posts, the not so honest people do get an open go. Or if you post up about the mods or accessories you have added to your camper or vehicle to make it something special, it could be considered a shopping list for some.
As I said though, the longer you are posting, and the more pictures you have posted up, and the more times you mention local locations, the more likely it is that your address has been compromised.