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Google will begin deleting millions of inactive Gmail and Drive accounts in December
(www.techspot.com)
This is a most excellent place for technology news and articles.
So what's the point of such anonymous account? Waiting for 10 more years till policy is changed by some reason or you finally figure out a way how to get a number that's not tied to your name?
I am surprised they did not have such periodical purges in the past.