It was kind of creepy, but it also had potential to be useful. But in the end it didn't matter because Facebook has pulled Find Friends Nearby as unceremoniously as it debuted it.
After the feature was introduced to the world Sunday by one of the Facebook engineers who created it, Facebook pulled the feature not long after, taking it offline the very next day.
Find Friends Nearby was definitely not a polished final product, but the feature certainly seemed like it could have been useful. Essentially, it was meant to help you connect with new-found friends offline by having both people access it at the same time. Opening the tool from your phone's browser or Facebook app would show other users on the page within your proximity using your phones' GPS.
That could've sped up the process of how new friends locate your profile to add you, which can be a huge obstacle for people trying to find users with common names, such as mine.