Interviewing yourself for a documentary film

I'm currently at work on my second documentary film and have already done several interviews. One thing I have thought about throughout the process is interviewing or having someone interview me on the films topics as well. I'm curious about this because on one hand, I have a lot of potentially valuable opinions on the subject matter, but on the other I am also the sole director and editor for the production.

Is there any stigma or taboo nature surrounding a practice like this? I'm curious to hear some opinions. Thanks guys.