Exactly what would miners want from investors and creditors?

I am specifically referring to miners who offer bonds and equity stakes in their operations. How can investors make rational decisions when these miners offer no proper financial reporting? I see many "investment funds" putting out their "income statements", which is 30% nonsense, 10% substance, and 60% god-knows-what. As an accountant by training (at one of KPMG/PwC/Deloitte), the lack of standards when it comes to financial reporting just makes me cringe.