1. A method performed by a computing system, comprising: receiving, in a networking platform system, a data item generated by a posting user of the networking platform system; determining, by the networking platform system, a popularity score associated with the posting user as a function of multiple social properties, the social properties including a login probability that at least one of multiple users logs in to the networking platform system within a specified time subsequent to the data item being generated; identifying, by the networking platform system, a queue location for the data item based on the popularity score, the queue location being a location in a cache queue of the networking platform system; and inserting the data item into the cache queue at the identified queue location.