A username uniquely identifies Scratchers in the Scratch Community. Each Scratcher is required to have a username, which is set while creating an account. Since usernames are the only way to identify Scratchers; no two usernames can be the same in Scratch. If one sees an inappropriate username, they should contact the Scratch Team or report it. The username shouldn't give away any personal information, However, it can include what the user likes in it. For example, Warriorcatslover123.
Usernames appear wherever a user must be identified. It is often accompanied by the user's icon. These include on projects they share, comments and forum posts they make, and in lists of users (such as followers).
If you are logged into your account, your username also appears on the navigation bar on the top of the Scratch Website. If you click on it a variety of links will appear such as Profile, My Stuff, Account settings and Sign out.
Usernames cannot be changed. This has been asked about, suggested, and declined multiple times due to the software architecture not designed to handle that and it would be confusing for everyone to be able to change their username.
The only way to get a new username is to create a new account. Projects can then be transferred, at the cost of losing all statistics.
Occasionally, usernames will be impersonated, as in Paddletosea instead of Paddle2See . This usually includes doing simple substitutions, such as replacing a capital letter I (i) with a lowercase l (L), or switching the letter O and number 0. These users should always be reported, as some users think the impersonator is really the user.
A username which is a usual word often used is often called a "namesnipe". They are often discovered by using the @ symbol in comments or entering the URL with that username. Many people accuse namesniped accounts as spambots but usually are old accounts which were abandoned a long time ago or accounts made for fun. They usually are spammed with comments that often relate to the username, including linking to other namesnipes.