I think if you did get invited to go on a podcast you should, as I am sure you have plenty of interesting things to say, I would listen in to it and i seldom listen to podcasts
but to answer your question would i do it, probably no, I am shy and doing a written interview which I just did I would be fine with, but a ive podcast no way LOL
Yeah it depends on the personality of the person whether being a guest would be a good idea or not!