A navigation system includes: a control unit configured to generate a feed hierarchy for prioritizing a trustworthiness of an interest feed based on a feed characteristic; determine a discrepancy by comparing the interest feed with the interest list, a feed record, or a combination thereof; determine a feed authorization based on the feed characteristic, the feed hierarchy, an entry category, or a combination thereof for manipulating the interest list; generate an update to the interest list based on the discrepancy, the feed hierarchy, and the feed authorization; and confirm the update to the interest list based on a navigation behavior at an interest location associated with the update as determined by a location unit coupled to the control unit.