[@mzaweb Member 13 years, 6 months ago]

You shouldn’t use antonymous functions (closures) for those filters. Those are only PHP 5.3+ compatible.

What we could do instead of all those filters is getting the forum object and use the $forum->post_title field directly, instead of calling get_the_title on it’s ID. I imagine people who wants to modify forums titles tends to filter bbp_get_forum_title and not get_the_title