Journalists and researchers have already pointed out that Greenwald's claim in this tweet about Parler is demonstrably false.

So I was curious where he got it from.

It turns out he was credulously parroting an anonymous Parler exec. https://t.co/kGI77C2vxK https://t.co/elHNdn3Dj0 pic.twitter.com/LNlJAqaaMr

— Nick Martin (@nickmartin) January 13, 2021