One, but not from our point of view as it makes them money.
This is what it boils down to. In its current form, it is only there to make money. If I'm honest, since I stopped playing my T10 heavies, people using gold doesn't bother me as much as it did. Yes, it's annoying getting penned through the turret of my T29/T32 by other T7/T8 tanks - but even with gold that's not guarenteed.
Just embrace it, get a Pz4, get a Hetzer, get a KV2 - and just stroll around the map one shoting stuff, it's great fun! Alternatively, just play mediums where gold ammo is irrelevant anyway.
The above being said, I still think it should be removed, however, that's not going to happen. I think it's more likely they will introduce gold armour.....now that would annoy me!