RE:Knowledge can be useful. "Cyanide use does not increase surface disturbance." Yes it would in this situation. Allowing the water to flow through the tailings dam, greatly reduced the size required, as it does not have to impound water. To be able to do that they went with using no cyanide, (the cynanide could have been neutralized, but the public likely would not understand, ignorant people like yourself would attack that).
However, yes your message does help to show how useless ignorance can be. Every point you tried to make was nonsensical and wrong. Your messages are so dumb that I rarely look at any now, so your messages are close to being filtered out by yet another reasonable person.