# Why are the accounts of some users inaccessible?

For example, check this question here, the account of the OP is not clickable, and appears greyed-out:

Why this is the case for some accounts? Are they deleted? If yes, how can one delete their own account? Or can only the admins delete accounts? And for what reasons can accounts be deleted?

Yes, the account in question has been deleted. (In general, accounts which are greyed out either belong to a now-deleted account, or, in the case of migrated questions, possibly to an account that was never created. When an account is deleted, the display name is reverted to the default user#### form.)