Should listings include the age of the item?

Flippadelic!

Most wolves are an endangered species, so being a flippant wolf isn't the wisest choice, lol.

In principal, I have nothing against "flippers" provided they respect and practice the ethical guidelines of the AG community. I try to exercise a lot of care in ensuring that a buyer is going to get what he wants. If someone just wants to flip, it makes things a lot easier for me. I don't need to worry about the piece being a good fit.

I don't think age should be listed or it matters. If shown easily you are giving buyers another bit of ammo to lowball you. To me age is a bit of factor but what if an item is old but sparingly used or then vice versa? It is only a couple of years old but heavily used? What then?

I believe there's a facility to ask sellers questions so if you want to know the age, color of their hair ... just ask.

IMO, "flippers" add liquidlity to the market so it's a good thing.