What kind of username should I pick? Can it be anything?Almost any name is fair game, but please keep the SoundCloud Community Guidelines in mind when picking. Also, in certain cases we may remove or change usernames that violate these rules:
No squatting: don’t pick a name just because it’s valuable or might be valuable to somebody else. Accounts that are reserved in big batches, or selected just to keep other people from using them are squatted, and that’s not allowed.
No impersonation: don’t pretend you’re somebody else with your username or account, even if that person is a celebrity. Uploading somebody else’s songs is copyright infringement, and using their name or picture isn’t cool.