If you simply sell personal second-hand idle items in idle fish, it doesn't matter if you don't have a business license, and it doesn't belong to unlicensed operation. If you are idle fish, treat this place as your own shop, wholesale or sell a lot of new products, and it is even more dangerous without a business license.
There are two elements: one is for profit; The second is commercial, that is, continuous operation, rather than occasional trading activities. According to the Electronic Commerce Law of the People's Republic of China, it will be classified as unlicensed operation, and if strictly enforced, it will be subject to administrative punishment.