The most jaw-droppingly wrong thing is the final claim: during SARS, we had hundreds of suspected cases, but then once we developed proper tests for it, only a

The most jaw-droppingly wrong thing is the final claim: during SARS, we had hundreds of suspected cases, but then once we developed proper tests for it, only a few cases were confirmed as real. So the article posits that the same will happen to case counts for COVID-19: once we develop tests, we'll learn that 99% of claimed cases aren't real. Except we've had tests this entire time. All counts of cases from all countries are based on actual testing, because these tests are the descendants of the ones for SARS. At this point, we can only be undercounting.