Dicebot was kind enough to share his thoughts on what motivated him to initiate an overhaul of the DIP process *and* volunteer to act as the DIP manager for the time being [1]. The reddit thread is at [2].

[1] https://dlang.org/blog/2016/07/20/the-why-and-wherefore-of-the-new-d-improvement-proposal-process/
[2] https://www.reddit.com/r/programming/comments/4tr32z/the_why_and_wherefore_of_the_new_d_improvement/