As someone who refuse myself I simply think it is a waste of my time. It isn't fun, it doesn't teach me anything I find interesting and it isn't a good way of filtering someone.

I would rather be with my girlfriend, play videogames after work hours, watch netflix, go see some friends.

I lost a team member to Amazon recently, he spent 6 months total (two 3 months stints) preparing for the interview. He bombed in the 1st try and passed in the second.

That's 6 months of your life studying after hours to get a job ... I really have better things to do!

He is there now and he says how his work is not as challenging as the one we were doing from a technical PoV and also how the culture is very toxic compared to ours.

Anyways... he is optimizing to retire early so props to him I guess.