2 Key for the win?

Is “spamming” “gold” rounds an actual problem in the game. I remember when “gold” rounds actually cost gold to buy. Back then I do think they were a problem because it was a completely “mom’s credit card” way of getting damage. Now that they are a sort of premium round is it still the same problem. And if played correctly instead of just being spammed they “pay” for themselves. Example: it cost X amount of credits to use. The gain from not bouncing the shot, tank kill, keeping your tank in battle etc makes up for the cost vs firing a standard round and bouncing it. While shooting “gold” rounds will never be a credit earning adventure is it no longer as expensive as it once was. Consumables (coffee, cola, cake etc) cost credits for the bonus the give you in game but I never hear “you cola spamming noob just uninstall”. So is using the 2 key a noob move or just a great ammo option when used properly is the way the game is played.