Re: rewrite-rules.php not working
I have heard horror stories of getting fancy URL’s working with WP on godaddy hosting, let alone bbPRess. Some relevant posts on godaddy and bbPress that might help you along:
https://bbpress.org/forums/topic/858?replies=16#post-5247
https://bbpress.org/forums/topic/531?replies=20#post-3077
Searching google or this forum might also have some other things to try with godaddy and bbPress.
Trent