It seems that the Ubuntu Forums hacker has broken cover to assuage users over fears that their passwords are on the market to the highest bidder. However, this promise doesn't appear to be some charitable act on behalf of a benign Mitnick wannabe: apparently, cracking 1.8 million passwords would just take too long!
The Register is reporting that someone claiming to be the hacker made his/her promise on TwitLonger. So, no harm, no foul? I don't think so, perhaps Sputn1k_ should get a job.
Sources & References:
- The Register: Ubuntuforums.org cracker promises no password release