It might have been already reported to you, I would like to post another vote to get rid of the following message:

Notice: bbp_setup_current_user was called incorrectly. The current user is being initialized without using $wp->init(). Please see Debugging in WordPress for more information. (This message was added in version 2.3.) in /wp-includes/functions.php on line 3547

which starts showing up when bbPress is activated and WP_DEBUG is on in /wp-config.php. It does not seem to break functionality of bbPress, but it is very annoying, when one tries to debug other stuff.

Thank you very much.

[@robin-w Moderator 9 years, 11 months ago]

This is an error in wordpress and awaiting their fix

https://bbpress.trac.wordpress.org/ticket/2412

Switching off debug fixes it, but appreciate that it is annoying !