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In most cases you will be able to use the same username and password to log in to other language Wikipedias and other Wikimedia Foundation supported projects, see Help:Unified login on Meta-Wiki.
- Well-known names
Do not use a username that implies you are (or are related to) a specific, identifiable person, unless it is your real name. If you have the same name as a well-known person to whom you are unrelated, and are using your real name, you should state clearly on your user page that you are unrelated to the well-known person. If you are a well-known person, you need to have your identity verified by contacting the VRT at info-commonswikimedia.org.
Use of the names of organizations is allowed on Commons only if you verify your account, proving that you are or represent the respective organization. While Commons allows using the name of an organization as a username, English Wikipedia and many other Wikimedia projects do not. You can use different accounts for Commons and Wikipedia, but if you want to use the same account for all projects you should comply with the more restrictive Wikipedia username policy.
Be aware that your organization account is responsible for all of its edits. Do not give any employee that doesn't fully understand Commons policies access to the account credentials. Policy violations will not be waived because "Jerry did it".
Using Commons to upload promotional material that is outside of Commons' scope is not permitted, even if the account has been verified. Unambiguously promotional accounts may be blocked.
- Account verification
If you want to verify your account, do one or both of the following:
- Use an official e-mail account to send an e-mail to
info-commonswikimedia.org, stating that the account in question belongs to you or the organization. Please be aware that the VRTS system that handles e-mail is operated entirely by volunteers.
- Link a page on your website or a verified social media account from your user page at Commons and link back to your Commons user page from that page/account.
Please note that Commons is a multilingual project – names of users in one language may appear offensive in another language, but are perfectly acceptable if they make sense in the language of the user's speaking.
Disruptive usernames, this includes outright trolling or personal attacks, or otherwise clearly disruptive intentions.
Misleading usernames that may give the impression that the account has authority it does not have. Usernames should not contain the terms "administrator", "bureaucrat", "steward", "checkuser", "oversight", "developer", "bot" or similar terms meaning the same thing like "admin", "sysop" or "moderator".
If you have encountered an inappropriate username, you have several options for how to proceed. You should choose one based on the severity of the problem, and based on what resolution would be the best for Wikimedia Commons.
Usernames that are obviously inappropriate may be blocked on sight by any administrator and may be reported at Commons:Administrators' noticeboard/Blocks and protections.
Usernames that are clearly unacceptable for use on Commons, but have no obvious disruptive intent may be blocked indefinitely, but the block should only affect that account (disable autoblocks, and disable "prevent account creation").
If your account has been blocked for this reason, don't take it personally; the block is intended to disable the username you chose, not to prevent you from contributing. Please read this page carefully and choose a new and more appropriate name.
Disruptive usernames that have been created only to cause trouble should be blocked indefinitely. Here the administrator will usually also prevent anonymous editing and stop any further accounts from being created (enable autoblocks, and enable "prevent account creation").
Such disruptive usernames may contain harassment or personal attacks, or be easily identifiable as a previously-blocked vandal.
Any block based on a user's behavior may take their username into account if it is adding to the problem. These blocks may be indefinite blocks, to disallow the username.
Inappropriate usernames do not need to be reported or blocked if the user has made no contributions; most user accounts that are registered are never used.
When there is no evidence that an account was created in bad faith, administrators should explain the exact reason why they have blocked the user in either the block log or in a message on the editor's talk page and include a link to the appropriate part of this policy.
If the user has been registered before this guide was written and the username is widely accepted and well known in the community and a rename would be difficult, no action should take place.
The purpose of a username is to identify contributors. If your username or your signature is unnecessarily confusing, editors may ask you to change it.
Usernames like "Dasdpoieqdmcoiaq" that are random characters, or are too similar to other contributor's usernames, or confusing for other reasons can be blocked, but the user should usually be allowed to register under a new name.
Confusing usernames can often be a red flag for other problems. An editor with a confusing username or signature may be blocked sooner than usual for other policy violations such as disruption or vandalism, if their confusing username contributes to the disruption.
As with all other blocks, admins should use their discretion and common sense.
If an otherwise good-faith contributor ignores requests to change their username, and goes on using a name that other editors agree is too confusing, then that username may be blocked. (Though this is best avoided if possible).
Signatures on discussion pages will continue to use the old name; while these can be changed manually, it is not recommended unless a contributor wishes to remove as much information as possible about their previous name for privacy reasons.
In such situations the old name will still be available in old versions of discussion pages. Username changes are listed in the user rename log.
One reason for this is the need for all contributions to be assigned to some identifier; either a username or, in the case of anonymous contributions, an IP address.