No, Facebook does not spy on its users, spying, on one hand, refers to the covert and unauthorized collection of information, often for malicious or illegal purposes. Spying is often done in secret, without the knowledge or consent of the individuals being monitored.

 However, Facebook collects data about its users through their activity on the platform, such as the content they post, their interactions with others, and their usage of features like advertisements. This data is used to improve the user experience and to display targeted advertisements. Facebook's data collection practices are detailed in its Data Policy, which users agree to when they sign up for the platform.
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