  Many researchers have been concerned with whether social media has a negative
impact on the well-being of their audience. With the popularity of social
networking sites (SNS) steadily increasing, psychological and social sciences
have shown great interest in their effects and consequences on humans. In this
work, we investigate Facebook using the tools of HCI to find connections
between interface features and the concerns raised by these domains. Using an
empirical design analysis, we identify interface interferences impacting users'
online privacy. Through a subsequent survey (n=116), we find usage behaviour
changes due to increased privacy concerns and report individual cases of
addiction and mental health issues. These observations are the results of a
rapidly changing SNS creating a gap of understanding between users'
interactions with the platform and future consequences. We explore how HCI can
help close this gap and work towards more ethical user interfaces in the
future.
