[_ck_]

bbPress’s auto-close tags is broken by default – though the code and filter is in there, it’s not passed correctly:

add this to a plugin

function force_balance_tags($text) {return balanceTags($text, true);}

add_filter('pre_post', 'force_balance_tags');

or if you don’t know how, use my tweaks plugin:

http://ckon.wordpress.com/2007/07/12/bbpress-plugin-bb-tweaks/