You probably should have sold when it was in the upper .002's just a few months ago if you were going to unload. It hit .002's a few times after that, too. Then it was in the .0014's for a bit. If you go a little further back, in the summer it was in the .004's. I haven't been in THAT long, so I haven't looked further back to see if it was any higher.
It is heading back up there, so it's a shame anyone would sell now.
Sorry you lost so much money, they say never fall in love with a penny stock. I couldn't imagine holding for four years! Whew.