On Special:CentralAuth/Username, a box called "Previous global account changes" appears, showing log entries related to the account from Special:Log/globalauth and Special:Log/suppress, if there are any.
However this box is only visible to stewards; it would make sense to show the Special:Log/globalauth entries to everyone. (Special:Log/suppress gets the log entries related to hiding/oversighting global accounts, which should not be visible to the public obviously).
Version: unspecified
Severity: enhancement