The PDF seems to be a controversial article to both sides of viewpoints of the covid19 pandemic treatment by various governments.
One description of the Spartacus letter is "A 41 page document chock full of disinformation about COVID-19 (including claims that the vaccines may be mind control technology)." And now that disinfo is being spread here on HN.
For an analysis of how that particular disinformation spread, see https://twitter.com/conspirator0/status/1442915635550294016
The PDF seems to be a controversial article to both sides of viewpoints of the covid19 pandemic treatment by various governments.