Copper pillars cannot be waxed, de-waxed, or de-oxidized

[sauphle]

Exactly what the title says. Copper pillars cannot be waxed using honeycombs or de-waxed and de-oxidized using an axe. This isn't a bug, but it's a forgotten feature.

[DeadPigman17]

I am also pretty sure that they don't oxidize naturally. I have some coppers pillars in my base and they still haven't oxidized even once, while other copper blocks have

[Derpgamer22]

I surprisingly never even knew this...