Has there (yet) been a public leak of millions of private facebook-like or gmail-like profiles? Sure emails, sure PII, but ever 50M people's gender and sexualit

Has there (yet) been a public leak of millions of private facebook-like or gmail-like profiles? Sure emails, sure PII, but ever 50M people's gender and sexuality linked to their real name leaked to The Pirate Bay? I'm curious if Facebook might be concerned right now that the raw data might itself get leaked. This would make yet even more personal what once was only theoretical or abstract.