Maybe they wanted to be absolutely sure that they were complying with the law fully and make sure they had set up code and policies to easily enable data deleti

Maybe they wanted to be absolutely sure that they were complying with the law fully and make sure they had set up code and policies to easily enable data deletion and correction. The law is not just looking in your database to see if you have any "bad" fields. You can look at the diff of their privacy policy on GitHub and see that they added/changed some of the 3rd party libraries that were used, possibly they felt the old ones were not compliant enough for them (they removed ChartBeat and replaced Localytics with Crashlytics). https://github.com/Instapaper/privacy/commit/05db72422c65bb57b77351ee0a91916a8f266964 https://github.com/Instapaper/privacy/commit/05db72422c65bb5...