So Parler got hacked before Amazon kicked it off AWS and 99% of it's data, including posts supposedly deleted by users, was downloaded. Included was all meta data like the users location when a post or video was made, and users authentication details like photo's of drivers licenses etc.

This makes some interesting reading:

Every Deleted Parler Post, Many With Users' Location Data, Has Been ArchivedIn the wake of the violent insurrection at the U.S. Capitol by scores of President Trump's supporters, a lone researcher began an effort to catalogue the posts of social media users across Parler, a platform founded to provide conservative users a safe haven for uninhibited "free speech" - but which ultimately devolved into a hotbed of far-right conspiracy theories, unchecked racism, and death threats aimed at prominent politicians.gizmodo.com

The info below was shared on advrider.com, though I don't know where it originally came from and can't verify it's authenticity.

Part 2

Part 3

Here's a link to the Warrior Docker Image info referred to in Part 2 where you can see the amount of virtual machines set up to download and share the information, and you can set up your own Warrior instance.

Some of the info about about what detail has been captured might not be completely accurate.

I don't know where it originally came from

It's from the "ParlerWatch" subreddit. I'm not going to link to it directly, because I'm not sure myself at the moment how valid any of the information there really is - but you should be able to find it via search over on Reddit.

The post correcting this information states that what actually happened was grabbing all of the posts, images and videos, which was possible because they simply used consecutive integers in the URLs. Images and videos seem to have been downloaded in their original form, which means including geodata and other metadata in many cases.

It's quite fascinating but I think as per usual, the simplest answer is the right one:

The Hacker Who Archived Parler Explains How She Did It (and What Comes Next)The hacker, donk_enby, explained that she only scraped what was publicly available: "I hope that it can be used to hold people accountable and to prevent more death."www.vice.com

She simply used publicly available scraping software to download publicly available images. They did do many non privacy-oriented things in building the site, like leaving metadata in the images. Flickr and SmugMug leave it in because photographers demand it, but we strip it out on Cake.