We did this on The Light Side. Everybody thought it sounded like a really good idea, but then it didn't take off.
The reality is, most of us are pretty similar people. We have a few different interests in things, but for the most part we're all identical enough that the interviews aren't all that gripping.
Another thing is that you have to find the right interviewer. You need to have someone who's good at asking probing questions, then who can edit down what they get into a concise narrative.
Finally, the subject has to be willing to expound on things to a degree that allows for interesting answers. If they just give brief answers the whole interview will flounder.
It's possible this will happen and this will be a success, but these sets of skills aren't common. I have reservations about this succeeding.
But that's not to say I don't wish you all good luck with it!