http://thepiratebay.org/blog/164
How about a little Q&A?
Q: You're an avid user of TPB with an extensive history of downloading illegal shit, and now the organization is changing owners. What happens to all of your personal data and history information?
A: Whatever the new owners want, given to whoever the new owners choose, if they choose.
If you're an avid user of TPB this should be scary as fuck. Not saying that they're going to start turning over your data to whatever law enforcement agency, but they could. Delete your account now and hope the current owners really care about your privacy and wipe as much history as possible before the sale, if they're not bound by settlement or sale agreement.