Well, nobody is arguing that they don't filter people (I don't think). The author seems to be saying that you could filter out just as many people with a more r

Well, nobody is arguing that they don't filter people (I don't think). The author seems to be saying that you could filter out just as many people with a more relevant and "modern" programming question -- and have a more accurate filter as well. Anecdotally, I took CS I/II last year and still it would (probably) take me 5-10 minutes to remember how to reverse a linked list under pressure. I don't think this is a major concern since I never anticipate EVER having to actually reverse a linked list manually.