I went to #freenode’s IRC channel for #wordpress and I tried to find help there.
They directed me to :
http://codex.bbpress.org/step-by-step-guide-to-creating-a-custom-bbpress-theme/
But on Step 6 where it says to copy everything in wp-content > plugins > bbpress > bbp-themes > bbp-twentyten into your child theme folder I’m stuck.
There is no wp-content\plugins\bbpress\bbp-themes directory in the latest bbpress.
Outdated instructions… 
I wish someone would step in and clear things up.
This page seems a little more udpated with the correct file structure. I guess I’m going to delve into this a bit more: