We will retain and use your information as necessary to comply with our legal obligations, resolve disputes, and enforce our agreements, but barring legal requirements, we will delete your full profile (within reason) within 30 days.
It's vague... so we really don't know what they're keeping.
But I'd imagine they keep:
The email address to prevent spam.
The IP address to comply with with any court orders that show up in the future.
Billing information such as credit card number and billing address.
Updated Title: This service holds onto content that you've deleted
Updated Analysis: Generated through the annotate view
Updated Status: pending