But it does have real medicinal properties, silver-iodide for instance.
When digital photography became the norm, and film became scarce, a huge market for silver disappeared.
Wiki:
Silver iodide is an inorganic compound with the formula AgI. The compound is a bright yellow solid, but samples almost always contain impurities of metallic silver that give a gray coloration. The silver contamination arises because some samples of AgI can be highly photosensitive. This property is exploited in silver-based photography. Silver iodide is also used as an antiseptic and in cloud seeding. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Overindulgence in silver can cause discoloration in a person's skin, namely turning bluish-gray color.