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Why is Google allowed to remove purchases from our Play Store accounts without telling us?
(www.androidpolice.com)
This is a most excellent place for technology news and articles.
You're talking about a different situation though. I have old apps that are no longer supported so I can't install them on newer devices. However, I can still install them on old devices with a supported OS version (or trick the Play Store into installing on a new OS and deal with bugs).