MediaWiki:Checkuser-temporary-accounts-onboarding-dialog-temp-accounts-step-content
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To protect user privacy, translatewiki.net is no longer publicly displaying the IP addresses of logged-out editors.
Instead, logged-out editors will be given automatically generated usernames linked to temporary accounts, and their IP addresses will only be visible to trusted community members who need to see them to deal with vandalism and abusive behavior.
When a temporary account is created for a logged-out editor, a cookie will be set in that editor’s browser. That temporary account will then be attributed to all subsequent edits, even if the IP address of that editor changes.