I'd like to be able to control exactly who sees my questions and answers. If I'm at a place that I think is awesome, it might be because everyone else in town isn't there in which case I'll have incentive to misinform any/all strangers. For what it's worth I recently released something like Localmind for surfers, so I look at it from that perspective. When the waves are good, we only want to tell a few specific individuals with whom we'd like to share the experience.