My extension ladder is out there, leaning against the carport. If lucky, I too will not have to use it any time soon. I might wash & wax the tractor once a year and the Jeep - but the ladder, NO. Never heard of ladder waxing, until now.
If there is any kind of fire around here - the last thing I will be using is my ladder.
When the fireman talked about waxing the ladder slide rails so they were easier to slide up and down that didn't sound like a bad idea... just saying...
Do you wax your ladder? Sure if I want to file a claim against the manufacturer. (dangerous slippery rungs)
And no I don't wax my tractor, heck not even my shoes.