I'm not saying that these tests are legit - we know that there is more bullshite in the C19 testing realm than there are craters on the moon - but...

Someone posted something similar recently, and explained the reality.

If you flood these tests with any liquid, more than they are designed to take (i.e a small amount of saliva) they malfunction and automatically render a malfunctioned result (i.e. positive).

You're going to get a bucket load of people misusing the tests and forcing fake false positives.

See also:

When droplets of orange juice or fizzy drinks like coca-cola are placed on a lateral flow test it can produce a positive result because the acidity of the drink destroys the antibody proteins in the test.

Sauce: https://www.dailymail.co.uk/news/article-9725379/Pupils-using-FRUIT-JUICE-false-positive-Covid-test-results.html

This will become more disinfo, and muddy up the information sphere.

That said, the PCR tests STILL do NOT detect infectiousness, and are completely unsuitable to diagnosing 'infection'.