Over the past 6 months I've had to return over half of the 40 items I've purchased from amazon for reasons ranging from being fake to damaged in shipping. The guy who took most of my returns at the UPS store said he's has a large increase in returns to Amazon. Could be that more people are ordering, and I know antecdotes aren't great evidence. But I do think that if Amazon keeps selling fake merchandise and inconveniencing consumers, they're going to suffer in the long term.
I'm also waiting to see if I get banned for "abusing" their return policy which legitimate customers have reported happening.