Just having started looking at all the how-to’s on dealing with modifying bbpress’ look and feel, I’m really questioning that YouTube link’s method.
He copied a bunch of files into the existing theme’s folder rather than making a child theme folder. After that, he copied a ton of code from one functions.php to WP’s function.php…
Sorry, but that just looks really rickety of a setup if you ask me, and I barely know anything about this yet.