I would have had no idea if it weren't for this post. It isn't displayed or acknowledged ANYWHERE on any page, through 3 or 4 pages of "Are you SURE you want to delete your account? You could pay us $5 per month in a different way to pay for 1TB of 'cold storage' instead? How does that sound?"

Only once you get to the final page of account deletion does it give you a single link that says "Request data download" or something.