The interviewer kept me for an hour despite reserving a 30 minute time slot. This is fine, but it does give signal that someone is being pushed, at least to the next round. I felt I was given false positive signals. Like other users have mentioned, I felt like the interviewer (whose husband owns the company) was fishing for experiment ideas and inspiration from leaders in the industry. I know this tactic is certainly cheaper than paying for experience, but it's cheap and clear to me this is what may have happened here.