Re: Lots of new features (Direction / Guidance)
I recognize you from the bbPress forums, so I know you know your way around WP/bb!
It shouldn’t take long for you to get up to speed with BP.
4) Re: modifying menu bar – you don’t need to hack the core file.
You can put custom code in /wp-content/plugins/bp-custom.php to override settings and variables.
7) Blacklisting usernames in WPMU – login to the WPMU backend, navigate to “Site Admin > Options”, look for the “Banned Names” field.
There are also some good how-to guides as well:
Also read up on the global $bp variable:
Hope that brings you up to speed!