I realize piracy is real but please don’t un-publish your e-book to “teach them a lesson”, it is like cutting your nose off to spite your face.
This thought comes after listening to a couple of writers rant about their books showing up on a pirate website. They receive no royalty from those sales and were understandably irate but removing the titles from legitimate retailers will not change the status of the pirated book guys.
Piracy is not a new thing and it will never go away, we must accept that fact, but we can learn to look at it in a more positive light.
A couple of years ago Neil Gaiman spoke about piracy. I’ll leave you with the video.