Yep - the data can have a lot of issues. You'd almost think ASIC...

Yep - the data can have a lot of issues. You'd almost think ASIC might be concerned about false and misleading information...

However, they have the following disclaimer on the data (which Shortman and others rely on):

"It is important to note that ASIC’s aggregated short position reports are reliant on the accuracy of reports we receive from individual short sellers. While we will monitor compliance with short position reporting and provide additional guidance where necessary, we are unable to verify the accuracy of all individual reports submitted to ASIC, nor to verify that all short sellers in our market (both in Australia and overseas) are lodging reports.Disclaimer: No responsibility is accepted for any inaccuracies contained in the matter published.Please note that due to technical difficulties experienced by ASIC, there may be some noticeable variations in the short positions reported compared to the previous day's report. We apologise for any inconvenience this may cause."
https://asic.gov.au/regulatory-resources/markets/short-selling/short-position-reports-table/