> gives a chance for the candidate to ... put forward their best self.
How does that work? If it genuinely won't be evaluated, what's the point of getting their best self? How do you make sure things you learn in this don't affect your judgement later?
I like leading with that, and am a big fan of the initial "what's an interesting problem you had to solve?" question, but I made the unfortunate experience that even people with good war stories are sometimes very shaky in the basics of the particular subfield I'm interviewing for. To the point of deeming someone not a good match for our team, but encouraging them and internal recruiters to interview with other teams.
There is ultimately no full substitute for getting down to brass tacks and actually do some "sample work" together. Whiteboard coding is the usual (and, I guess, often poorly implemented) approach, but I've used reading existing code, with added intentional mistakes, to great success so far.
EDIT: Just read your new reply in a sibling thread that you're doing that anyway, and project and war stories are supplemental. It seems like we're in agreement, then!
As for avoiding unconscious bias, was that ever an option?
> [...] That said, I do find [it] hard in interviews [to talk] about past experience[s] and prefer to just be given a web application riddled with every type of bug and try to bingo them all in the time given to show that I understand them all. That one was my favorite interview.
Now I see johnqian suggesting to ask interviewees how to best see their skills, and it sounds great. If the interviewer doesn't have something like this on hand, we could still go into different types of bugs that they care about.
I've also had interviews that went terribly, particularly when no technical details were asked at all for a technical position (e.g. a manager just asking the standard questions where you need to give platitude answers, such as "why are you specifically excited to intern with Vodafone", methinks: "because I want that degree and you were the only option I could think of within 45 minutes commuting"... but one can't say that so I made something up.. he probed further on that... it went downhill from there), so being able to steer away from that sounds great.
But it might also be that I would feel unprepared for such a question and give a total non-answer, helping neither party.
Asking this in an email ahead of time might be better, though then the effect you're suggesting might be even stronger.
Edit: I'm not the downvoter, to be clear. I think you raise a good point even if I am not sure whether it would necessarily be that way.