Parler was created to be a place where the alt-right could freely spout their lies without fear of censorship. Facebook has that, but it's not the reason the platform exists. The intent is completely different.
People digging into Parler found out that all new users were shadowbanned by default until a group of like-minded moderators reviewed and approved their posts.
These moderators were overwhelmingly MAGA/Trump supporters, so I'm sure you can guess what kind of posts they expected to see before they unblocked a new user.
This was all shared/revealed on Twitter, so take it as "evidence" with whatever grain of salt you like, but people didn't just make up these claims about what Parler was..
So while perhaps Parler claimed to be a place for open debate and unrestricted ideas, it is seems that was just a thin cover for their much more focused goal of being a home for all this extremist right-wing talk in America.
Thanks, I took a look. It is not the most coherent presentation but I can see there were examples of crappy posts in there, but so there are everywhere else. The AWS letter made the most reasonable argument and it amounted to an indictment of Parler's technical ability to keep manual moderation working in the face of increasing traffic. Whether that really was the problem or just a virtue display from Amazon is unclear to me.
Vice also published a good summary of the stuff that was scraped from Parler when their SaaS providers went down, but most of it is based on interview with the Twitter user above.
