As a DD player, other DDs and CAs ask me to smoke-screen them, but never BBs. Whenever I proffer smoke to BBs player, they always decline and say that smoke for them is useless. But why? Is it worthless to smoke BBs?
If not, when ought BBs be smoked?
On Smoke Screens - Global wiki. Wargaming.net, the only sentence that looks germane is
Firing while in smoke increases the detection of a ship. While not firing, all ships are subject to a 2.0km detection radius, and will not be seen without the use of Surveillance Radar () or Hydroacoustic Search (). However, upon firing, a ship's detection will increase based on the caliber of its guns. For instance, low tier destroyers do not get any penalty, as their guns are too small. Yamato has a 20km penalty.