In what ways is Reddit pseudonymous rather than fully anonymous?

Reddit occupies a precise and important position between anonymity and identity that is best described as pseudonymity: users operate under consistent screen names that accumulate history, reputation, and behavioral patterns over time, even though those screen names are not tied to real-world identities by default. This is fundamentally different from full anonymity, where each action is unconnected to any persistent identity. On Reddit, your username is a stable, searchable identity that follows every post and comment you make across every subreddit. Anyone can visit your profile, see your complete post and comment history, observe which communities you participate in, note the time patterns of your activity, and trace your positions and opinions across years of participation. This posting history creates a de facto identity that can be profiled and analyzed, even without knowing your real name. Reddit itself collects identifying information beyond usernames: IP addresses are logged and retained, email addresses are optional but commonly provided and required for password recovery, and browser fingerprinting data is gathered as part of normal platform operation. Reddit's privacy policy, like those of all major platforms, can be subject to legal requests for user data. Full anonymity on Reddit is therefore an illusion unless a user takes deliberate precautions: using a new account for sensitive topics, never linking their Reddit username to their real-world identity elsewhere on the internet, using a VPN or Tor to mask IP addresses, and using a burner email address unconnected to any real-name account. Pseudonymity offers practical privacy in casual use — most posts are read by strangers who have no motivation to investigate the poster's identity — but sophisticated analysis or legal compulsion can pierce the pseudonymous layer more readily than many users assume.