We see same symptoms repeated for last 5 quarterly updates... After every eBay quarterly update, Sales stop. Steady daily sales for 2 months, then eBay adjusts search or add features, Sales stop or decrease by -50%. Traffic decreases from date onward. Example, traffic at 40K daily impressions for 3 weeks, eBay does the quarterly update, traffic drops to 20K daily or even less 10k. Why does this occur?
