How do I delete my Quora.com account?
You have to login the old account.
>Click on your name on right upper side
> Click on settings
> Click on privacy,
> You will see deactivate option in last
Contact Quora Admin, or write a mail to them:
You can e-mail
Please include a link to your profile.
Deleting your account removes all answers and comments you’ve written and deletes your name, e-mail address, etc. It cannot be undone.