I do not think salt "cures" diseases, as all of the links you provided use as there basis for the opposing view. However and moreover, I do use salt for all of the things, that, even the links you provided say are "acceptable" uses for salt.
1: Ease stress upon new fish introduction
2: Soothe the gills from either, nitrite poison (not at my house!) or the one that does apply(to me), after a water change, the particles floating in the tank, are irritable to them, so that is when I throw in a couple tablespoons per 50 gallons.
3 : Ick....(also not at my house)
This is my stand point on salt, and never will I think it can "cure" diseases or do anything worthwhile at a high concentration......THE END FROM ME.
1: Ease stress upon new fish introduction
2: Soothe the gills from either, nitrite poison (not at my house!) or the one that does apply(to me), after a water change, the particles floating in the tank, are irritable to them, so that is when I throw in a couple tablespoons per 50 gallons.
3 : Ick....(also not at my house)
This is my stand point on salt, and never will I think it can "cure" diseases or do anything worthwhile at a high concentration......THE END FROM ME.