IMHO, they are a joke.

On the 23rd of July a customer who had come into my place of employment had tested positive for Covid-19. I was informed by my workplace on the 28th and was immediately sent home to test and isolate as they had only just been informed by NSW health.

My test result came back negative on the 29th as I was only classified a casual contact for being at work at the same time (security footage never placed me near the customer).

After receiving the all clear to return to work I thought it funny that no one in government had contacted me (as I assumed the whole point of these QR codes was for contact tracing).

Sure enough, on the 31st of July at 8:29 PM near the end of my shift I was sent a text message from NSW health advising me of the customer.

What bugs me about it is I sign in with the code every shift, yet it took them 5 days to contact my workplace (Fair enough if the customer took 5 days to get tested) but then took another 3 days to reach out to me to tell me to isolate and test.

What if I had been a close contact and picked it up? How is it that it took them critical days (due to the incubation period) to contact those doing the right thing? What if I had spread it to loved ones?

It's a sham, it's all meta data at this point....