its hard to say, but generally the public postings like that are a cover up to cover tracks.
you might imagine that no one ever puts such offer on public (or private with everyone having access to it) kind of boards.
its a very usual thing to do, at least, back in the day <strikeout>we</strikeout> they were doing that every time we weren't 200% sure of our tracks or for highly advertised targets (yeah you risk less hacking a whole ISP than you do hacking a nooby site such as mysql.com)
you might imagine that no one ever puts such offer on public (or private with everyone having access to it) kind of boards.
its a very usual thing to do, at least, back in the day <strikeout>we</strikeout> they were doing that every time we weren't 200% sure of our tracks or for highly advertised targets (yeah you risk less hacking a whole ISP than you do hacking a nooby site such as mysql.com)