1. A method comprising: receiving, by a server computer that is hosting a messaging application, a request from a client device that is executing a second instance of the messaging application relating to obtaining a plurality of conversations associated with the client device; by the server computer in response to the request, retrieving data corresponding to the plurality of conversations that are associated with the client device and causing displaying a list of the plurality of conversations on the client device; determining, by the server computer, an amount of time that the second instance of the messaging application has been in use by the client device; determining, by the server computer and based on the amount of time and at least one of a plurality of conversation attributes, a rating value for each conversation among the plurality of conversations; identifying, by the server computer, a particular conversation of the plurality of conversations wherein the rating value associated with the particular conversation is below a threshold rating value; by the server computer in response to identifying the particular conversation, causing updating the list that is displayed on the client device by removing the particular conversation from the list of the plurality of conversations that is displayed on the client device.