[shureluck]

This is exactly right. Been seeing this a lot, especially in the last five years.

Most of my tech interview strategy has adapted to weed out candidates that are imposters.

[Izkata]

This has always been a problem though, it's how simplistic programming tests like FizzBuzz got started: Non-imposters find it trivial, imposters can't figure it out on the fly. Then that one got too popular, solutions are all over the internet, the imposters started memorizing it, and now we've ended up with a crazy variety of programming tests that have drifted extremely far from the original intent.