Heather Dudley (HD)
Heather Dudley is one of the several adult moderators running the NaNoWriMo YWP forums. Her biography on the site is as follows.
My name is Heather Dudley (obviously.) I'm staff here at NaNoWriMo. I've been working for NaNoWriMo since 2008, and have done NaNoWriMo since 2002! If you do the math... that's a really long time [...] My old username was Dragonchilde; that's why you'll see some folks around here call me "DC." I also have been called "HD" -- either works!
She works alongside other mods such as RD (Rob Diaz) to keep the forums running smoothly.