Steve I am dismissing the never ending support of a dying stock for no other reason than to try and convince ones self they were right.
There is a difference.
Now, buying in at perhaps a level or two below ones original investment, if that is the strategy going in would be acceptable but there are plenty of people here who were buying well ahead of .05 saying it was a steal who are still buying here saying it is a steal.
At some point in time one must realize they were simply incorrect about an entry and averaging down.
It ties up more and more money that could effectively be working for you elsewhere. Chasing bad money with good money only keeps you from actually making money somewhere else.
One should be confident they made the right choice from the start. If the loss exceeds 5-10% then it is obvious you were wrong so move on to greener pastures.
Or, keep throwing money at it, tying it up so it can't work for you and hope that you eventually end up even. What kind of sense does that make?