I thought this might be a good thread.
I've seen divers and manufacturers take both sides of this issue. Spotted one Pole Spear Manufacturer in Florida that had a write up to why it is NOT needed.
His poles spears are expensive and are NOT anodized.
From a non Technical perspective, if it is not need for corrosion protection and just a trick way to add color, why are there so many anodizers across the world.? Why are there clear coat anodizing processes.
I think it is an add advantage for reduced corrosion possibilities, what say you? -John