This is probably not very nice of me to laugh loudly at this news, but read this Techcrunch blurb (screenshot from my Feedly reader):
Millions of entries, including deleted , private and intact posts were uploaded to the Internet Archive from the recent events (deleted and private were still on the server, just not viewable to an unsavvy public). With metadata because, well, this social network was too bone-headed to strip it like other sites using best practices.
So much for privacy.
Really, rushing to a relatively new service and plotting such activities is not the smartest thing. Then again, posing for pictures without a mask and posting online doesn’t speak to volumes of intelligence or ability to think in a forward manner.