True, but it violates the user agreement. At one time I was selling a dozen items a week. EBay gave me not only a marketplace, but a convenient way of tracking my payments and shipments - for a decent price (those tracking methods would disappear for sales completed outside eBay). Now those benefits remain, but at a higher price, and my sales are way down.
When I leave eBay, it will be because I don't like them - not because they banned me for violating their rules.