The fact that not rotating questions makes it trivial for someone who’s been through the process to tip off future applicants. Sites like Glassdoor and leetcode already do this, but it’s tempered by the fact that most companies rotate these type of screener questions regularly.
It sounds like some of these questions are bad screeners anyway, but it makes them even worse if half the people going through the process are feigning surprise at the tricky question then quickly developing a “brilliant” solution.