It would be better if we just stopped asking l33tc0d3 questions, since it's been shown over and over again it's a pointless waste of time on both side of the aisle.
If a candidate is taking the time to practice and master leetcode it does show the candidate is motivated, demonstrates their ability to learn and internalize knowledge, and to utilize that knowledge under pressure.
If those are things you want to screen for and have a high volume of talented candidates I can see a use for them.
* ability to communicate
* ability to empathize
* ability to be a nice person you’d want to see every day