If we were into conspiracies, we would feel that there has been an infected person following us into nearly every supermarket we have visited in the last two weeks, and they followed us to Bunnings, pharmacies - no where is sacred!I have closed my ears and eyes to Service NSW covid alerts - mainly because I got my Moderna booster in time (I knew kids would be prioritised on the 10th) and isolated as much as possible . I note the odds/frequency of generic sms is very high if you go to a big box store or the supermarket. Secondly because monitor for symptoms will not cut it (likely to be the same or less than a cold or flu for many - source John Campbell of UK videos).
But of course with the widespread nature of the current Omicron outbreak, reality tells us lots of different people have been following us .
When you get pings for a 3 minute visit to get a pint (sorry litre) of milk, then they do become fairly pointless.