How can I request all information stored about me?
To request a downloadable copy of the information that Flickr has about your account, including account preferences, profile information, and your photos and videos, send an email to firstname.lastname@example.org. Include the link to your Flickr profile in the email: https://www.flickr.com/people/xxxxxx
What data do I get? And in what format?
Not known yet. If you got your data, please comment in this ticket.
How can I delete all information stored about me?
Go to the account delete page.