Roger Ver has access to the Blockchain.info database and is prepared to abuse it in order to take revenge over a customer service dispute in one of his other businesses.
See this thread for more details:
https://bitcointalk.org/index.php?topic=131574.0
https://bitcointalk.org/index.php?topic=131608.0;all
Are you still spying on bitcoin users Roger? What kind of Libertarianism is this?!