Buy: Metminco Binary Hedging at Play, page-11

This is just my opinion but AnotherUK, what you also have to realise is for some the average is a lot higher than what you are likely sitting at (and the pain has been a lot longer for many of us) and not all have unlimited funds to keep pouring in every time the BOD decide they need more money to keep the business afloat. This is what most of the MNC's CR have been doing for the last couple of years.
You also mention "sell and be rid of your nightmare" that is easy to say but not in all cases is selling going to rid one of the nightmare if they have invested large and are left with a tiny fraction of what they invested. Too many long termers have over invested (myself included) as they were left with little choice due to potential dilution. They were fed a story and still believe in the resources MNC hold but are not confident the BOD have the skills to truly deliver IMO - after so many years doubt creeps in or blind faith occurs. For this reason it is perfectly understandable for some frustration exists. Over the last 5 or so years the SP has fallen 99.5% more or less from its peak. How the BOD can say they are working to benefit all shareholders is a bit of a stretch for anyone thinking rationally. We still hold as we are hoping for a miracle escape and IMO I think the BOD are hoping for that too and winging it.