You might do some polling and see how Amazon users feel about it.

In the end though, I think it takes multiple incidents and consistent disfavored rulings to alienate significantly spending customers to the point of not using Amazon.

(Significantly spending = we're not talking about people who only use Amazon once every two years for Christmas to begin with.)

It's interesting to note that stock price but I don't think it can be used as an indication considering how much that stuff fluctuates.

Overall you're probably better versed than me at this.