Re: Auto close topics
It would be possible to do that via a plugin.
this might work, untested:
add_action('bb_head','close_long_topics');
function close_long_topics() {
global $topic;
if (is_topic() && $topic->topic_open===1 && $topic->topic_posts>299) {
bb_close_topic($topic->topic_id);
$topic->topic_open=0;
}
}