For all the complaints about whiteboarding, it does filter out a lot of people who can't seem to generalize problems or are weak at either problem solving or co

For all the complaints about whiteboarding, it does filter out a lot of people who can't seem to generalize problems or are weak at either problem solving or coding. I don't see how anyone who has given technical interviews could say whiteboarding is a waste of time, unless they are not good enough at whiteboarding to be able to productively give such an interview.