A system for evaluating network users comprises one or more processors communicatively coupled to one or more memories operable to receive, over a network comprising a plurality of network users, electronic first user content generated by a first user, provide the first user content over the network to a second user, receive, over the network, a second user response to the first user content generated by the second user, determine a second user response delay time for the second user response, wherein the second user response delay time is associated with the amount of time between when the first user content was provided over the network and when the second user response was received, and generate a first list of network users that have responded to first user content, wherein the first list is organized based at least in part on the second user response delay time.