This post seems fake.
There was a group of people archiving the public content of parler using this docker container
https://github.com/ArchiveTeam/parler-grab
and archiving it here
https://tracker.archiveteam.org/parler/.
I can't validate anything else in this twitter post. The administrator accounts part all seems fake, unless anyone has found the rest of the content or has a better source?
Previous discussion deeming its fake here https://news.ycombinator.com/item?id=25725268