I'm glad you like the interview! The credit goes to Mike - there may be a bit of a knack to asking the questions but it's much, much harder to answer them, especially when you have many other things occupying your time. IMO, a good interview is when you get to see through someone else's eyes for a moment, and perhaps find out a couple of things about them that you didn't already know. That's mainly in the answers, not the questions.
Aaaaah. I reread the old interview with Kier and there it is:
all the vBulletin staff receive a fair bit of adulation from the hard-core fans though it's always important to remember that the online world is very fickle and the moment that we stop providing superior support, excellent customer relations and an innovative product the market is ever-ready to move to someone who will.