Selling a product for a very high price
There is this one online seller that sells different clothings for a very high price. She sells the clothes ten times their original price and it was not even branded. She was exposed on social media platforms because someone saw what she's selling on an online shopping application. In order to avoid this type of seller, we should give warnings and knowledge about this issue.
This seller committed something like what we call predatory pricing but instead of setting the price very high. It is considered illegal because it violates the antitrust law. It is also unethical because it will hurt the consumers not physicalty, but financially. Although it is a rare concept in competition law, it is still unethical.