Location-based Social Network (LBSN) services, such as \textit{People Nearby} in WeChat, enable users to discover users within the geographic proximity. Though contemporary LBSN services have adopted various obfuscation techniques to blur the location information, recent research has shown that based on the number theory, one can still accurately pinpoint user locations by strategically placing multiple virtual probes. In this paper, we conducted a comprehensive simulation study to examine the i
