1. A method performed by a computer, the method comprising: determining a reliability value of an online designated evaluation of an interacting party based on a feature value of an online service interaction in response to receiving the online designated evaluation of the interacting party in the online service interaction; determining a reliability mean value of multiple designated evaluations based on reliability values of the multiple designated evaluations of the interacting party in multiple online service interactions including the online designated evaluation; determining a reliability weighted mean value of the multiple designated evaluations based on a frequency weight corresponding to the multiple designated evaluations and the reliability mean value, wherein a number of the multiple designated evaluations is in a monotonically incremental or decremental relationship with the frequency weight; determining a user feature of the interacting party based on a size relationship between the reliability weighted mean value and a preset reliability threshold; and hiding the online designated evaluation from the interacting party if the interacting party is a providing party of the online service interaction and the online designated evaluation is a negative evaluation.