1. A computer-implemented method for computing a reputation score for a user profile within the default network computing system, the method comprising: receiving a request to assess a user profile of the default network computing system; retrieving, from the default network computing system, a plurality of user action counts, each user action count indicating how many times a particular action relating to the assessed user profile has occurred within the default network computing system; multiplying, through the default network computing system, each of the plurality of user action counts by one of a plurality of weighting factors to determine a plurality of products, each weighting factor corresponding to a particular user action count; summing, through the default network computing system, each product in the determined plurality of products to calculate a weighted sum; storing, in the default network computing system, the calculated weighted sum as a user reputation score for the assessed user profile; and providing for display, to a user profile of the default network computing system, the stored user reputation score for the assessed user profile.