A method, a computer program product, and a computer system counterbalance a developed bias of user reviews. The method includes determining a developed bias of an existing plurality of first user reviews for a first item. The method includes determining a tendency value of a designated user indicative of a tendency of a user sentiment exhibited in user reviews for respective second items provided by the designated user deviating from an average sentiment of the respective second items. The method includes determining an influential prompt in which the designated user provides an input for the first item, the influential prompt being offset by an offset value based on the developed bias and the tendency value. The method includes prompting the designated user with the influential prompt and receiving the input from the designated user. The method includes updating the tendency value based on the input.
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