The whistleblower site DDoSecrets says it will selectively share 70GB of encrypted passwords, private posts, and more with "journalists, social scientists, and researchers." Gab CEO Andrew Torba acknowledged the breach yesterday.
https://www.wired.com/story/gab-hack-data-breach-ddosecrets/
Regarding this I remember seen someone who claimed to be a Gab engineer (probably on this site) claiming that he knew that Gab was compromised.
He never offered evidence when he was challenged by the community.
Looks like any social media (even with genuine and good intentions) is just a database for dissenters of any sort (left, right, center, above, below).