Q: Why eBay is asking for item specifics when listing? -- eBay changed their item-specific requirements. Warning - The item specific is missing, enter a valid value, and then try again. Why is this happening?
A: You didn't have to enter the item specifics before because eBay was not enforcing them. Now they are. Therefore, if you want to sell on eBay, you'll have to provide the information that they require.
You would see that the item specifics are required. They now have a little red asterisk (*) next to them when you list.