Thousands of vendors on Etsy are staging a strike this week after the company announced it would hike transaction fees for sellers by 30%. It’s the latest in a series of changes that Etsy says will help it compete with e-commerce giants like Amazon by improving customer service, attracting more buyers and strengthening the brand by policing listings for mass-produced items, something sellers have been asking for. It’s a topic for Quality Assurance, where we take a second look at a big tech story. Marketplace’s Meghan McCarty Carino speaks with Samantha Close, a professor of communication at DePaul University.