1. A method of operation in a matching service system of a matching service, the matching service system having at least one processor, at least one nontransitory processor-readable medium communicatively coupled to the at least one processor, and a number of communications ports communicatively coupled to the at least one processor which provide communications with a plurality of end user devices, the end user devices logically associatable with a plurality of end user client accounts of the matching services, the end user client accounts logically associable with end user clients of the matching service, the method comprising: for each of a first plurality of paired end user clients of the matching service, populating a paired database with information for each of the end user clients of the respective paired end user clients; monitoring communications with the end user devices for a reappearance of any of the end user clients of any of the paired end user clients; and for the end user clients that reappear, culling the respective information for at least end user client that reappears from the paired database for end user.