They could gain back some credibility if the directors and...

They could gain back some credibility if the directors and management who were in charge at the time of the original decision to mine, showed some balls and offered to resign!  The resignations do not have to be accepted but until these people accept responsibility for their decisions none of the burnt and angry investors will be opening their wallets.
The chances of this happeniing get less every day that goes by so I don't expect it to happen and any respect these people had from myself and many others gets smaller by the day.
We have put our remaining few shares in the bottom of the bottom drawer and accept that we have probably done our dough. 
All the good news that is creeping out can't change the bad taste in the mouth, nor will the highlighting of the good parts of announcements by some of the posters here change that.
Taking ownership of the past problems by remaining management and directors is a start, but I doubt they are made of the right stuff.