Unconfirmed Reports of Massive T-Mobile Breach

From the forum post this article links to:

"We already contacted with their competitors and they didn't show interest in buying their data -probably because the mails got to the wrong people- so now we are offering them for the highest bidder. "

Are these guys serious? How could they expect any legitimate company let alone a large-scale telecom to want to buy this info?

Sounds suspect.