The report comes from editors over at WCCF Tech (via GameSpot), who discuss the language used in the new clause. "You must sign into Xbox Services at least once in a five-year period, otherwise you may lose access to the gamertag associated with your account and that gamertag may become available for use by others."
Microsoft has been doubling down on freeing up stagnant gamertags and releasing them back into the wild. It released some back in 2011, and freed up one million more earlier this year. To be fair, if you haven't used your Xbox Live account in five years, you were pretty much done with it, right?
This is one in a line of changes Microsoft has made to its online gaming network in recent months. Back in May, the Xbox manufacturer made some adjustments to Xbox Live's subscription price in select territories. More notably, it began encouraging cross-platform play between Xbox One games and their PC and PlayStation 4 counterparts.