What is the disadvantage of loss leader?

The disadvantage of Loss Leader is that if a company will lower their prices for a certain time and raise their prices again, the customers will not be comfortable with the increase in the price and so they will start buying for the competitor and not buy any more products from the shop/company/business!!!

This is the best disadvantage of a Loss Leader you can get.....i am the most clever person in the world!!!!....joke