1. A non-transitory computer readable storage medium storing instructions that, when executed by a computing system, cause the computing system to perform operations comprising: capturing, by a device of a user, an image of a machine-readable symbol encoding an identifier, the identifier identifying a locale associated with the machine-readable symbol; processing the captured image to discern the identifier encoded into the machine-readable symbol; presenting for display on the device an interface for receiving content from the user relating to the locale associated with the machine-readable symbol; and receiving, from the user at the device, content relating to the locale.
5. The non-transitory computer readable storage medium of claim 1 , wherein the interface presented for display allows the user to upload content relating to the locale, and wherein the content received is the uploaded content that is posted for a discussion relating to the locale.