From one of the comments on the page it looks like this is a marketing ploy:

    nslookup tracker.thepiratebay.org

    Non-authoritative answer:
    Name: tracker.thepiratebay.org
    Addresses: 2a01:298:3:1::2
    192.121.86.4
    192.121.86.2
    192.121.86.6
    192.121.86.3
    192.121.86.8
    192.121.86.7
    192.121.86.5

    nslookup tracker.openbittorrent.com

    Non-authoritative answer:
    Name: tracker.openbittorrent.com
    Addresses: 192.121.86.5
    192.121.86.8
    192.121.86.7
    192.121.86.4
    192.121.86.2
    192.121.86.3
    192.121.86.6

Yea this is just smoke and mirrors to allow the 'sale' of The Pirate Bay. In reality all they're selling is the domain name.