It's been a few years since I've been active in the forums. This informal 100+ page document contains excerpts from nearly every interview documented in the archive and on KHinsider, as well as a few other sources, from 2002-2022, which I thought might be handy due to the large number of interviews concerning the series over the years. I tried to include only insightful information on series development, marketing, and design philosophy, as well as behind-the-scenes relations with Disney. As most interviews were taken from Japanese publications, credit is due to the translators for KH13 and KHinsider, with only a small fraction of the sources requiring machine translation. It hasn't been proofread so there may be some inconsistencies in the formatting and some grammatical errors I didn't catch.
https://docs.google.com/document/d/1Az3m5KDkT0tUdjmBpn4gY-5x-VDx40JU1ARZZhWdcCE/edit?usp=sharing