BuddyPress.org

@nonegiven – Watch your language; I can understand your frustrations but this is not the place to vent steam.
/Community/ is just a page under which I assume Andy wanted the BuddyPress pages on this site.

Forums are contained within Groups. That particular question is off-topic for this thread and would be better of in its own.
You can’t reply to an another reply as this is something bbPress doesn’t support. Right now, we’re in a forum – this isn’t “comments” in the WordPress sense of the word (which of course does support nesting).