Etsy benefited greatly from the COVID-19 pandemic, but the business has struggled in recent years.During the depths of the pandemic, Etsy (ETSY -5.46%) was booming, as spending activity on its online marketplace soared. Growth was through the roof, which sent shares higher. However, the company has struggled in recent years. These days, investors have every reason to be dissatisfied with this business. If you'd invested $10,000 in this e-commerce stock five years ago, here's how much you'd have today.  Etsy ...