Complete manual/129/en

A pseudonym can be name-shaped (e.g., "Jane Doe") or not (think of some Twitter handles you’ve seen that are thematic, symbolic, or nonsensical phrases or words). Often, you will have complete freedom to create pseudonyms, but there are also services that police and shut down accounts with pseudonymous or anonymous identities. At the time of writing, the most well-known example of this is Facebook, which requires users to use their ‘authentic identity’ (or ‘real name’), which almost always means your legal name, or the name by which you are commonly known (such as a nickname).