User accounts
Most of the functions of the Hackage web interface (including browsing and checking packages) are available to all. However, uploading packages requires a Hackage username and password.
The current policy is that anyone can register an account but an administrator needs to grant upload priviledges before you can upload packages. In future this will make a bit more sense because there will be things you can do with an account other than uploading or managing packages, like comments and submitting build logs.
So, you can register a new user account.
You can also peruse the list of users.
Passwords are not stored, just the digest.
If you forget your password you can reset it so long as you know your user login name and the email address you originally registered with. The system will send you an email with a link you can use to set a new password.