The downside is that you're now wasting interview time on the river crossing problem instead of actually relevant questions for the job you're hiring for.
Don't literally use the river crossing problem, but it's existence implies there is a form of question that ChatGPT will solve for where someone actually reading the prompt can solve trivially but someone using ChatGPT will get stuck on.
You're already asking Leetcode questions that are irrelevant for the job you're hiring for. What's the problem with asking one more to test for cheaters?
You're already asking Leetcode questions that are irrelevant for the job you're hiring for. What's the problem with asking one more to test for cheaters?