Well that went rather quickly from fighting the evil hedge funds short sellers to actual nazi shit.
The WSB post is locked. There is much better discussion and debunking in the r/southafrica post: https://reddit.com/r/southafrica/comments/ll1dbd/i_am_going_to_short_the_whole_country_of_south/
As everyone in the comments is pointing out, the only thing he'll do is lose all his money.