1. A method to adjust a ranking and expected reward of a first user comprising: identifying a first object from indexed online content posted by the first user; aggregating a portion of the identified indexed online content created by a second user in response to the indexed content online posted by the first user, each respective portion of indexed content referencing metadata; in response to the portion of identified content from the second user being feedback, incorporating the aggregated portion of indexed online content into the metadata of the first object forming a new object; determining the relevance of the first object to the new object using a predetermined metric; and adjusting the ranking and expected reward of the first user as a function of the relevance of the first object to the new object.