When you create a listing you are told the seller is responsible for their listings so if the item has the stench of smoke then it should be mentioned.

There is nothing worse than opening a package and being knock over by that stench.

A buyer should not have to ask questions of the seller to know if their items stink of smoke.

As smokers would not even smell it them self as they smell the same and would say no.

There was a listing stating no pets or smokers in the house and there was a cat in the corner of the photo. Some seller do lie or leave out info to make a sale.

If you neglect to mention anything that should be listed in the listing then you run the risk of not as described problems and neg feedback.