Comment I see no problem here... (Score 5, Informative) 20
These were mass registrations by bots that were not used, disabled years ago. I see none of the privacy reasons, legitimate private email would not get into them any more than what already happens accidentally with people mistyping the intended recipient. This is a non issue, definitely not worth a post here. Even on reddit the top comment is release them, but as they are valuable ones (the bots got tons of "nice" ones), release them to paid users - which sounds fair to me...