My issue appears to be only when I'm trying to post a new thread with a WoWhead link (not using BBcode):
Code:
PHP Fatal error: Call to undefined function print_log() in /forum/includes/functions_newpost.php(175) : eval()'d code on line 64
and I seem to have narrowed the issue down to the "Wowhead URL TO Item code" which takes its code from another hack that seems to conflict with other functions on occasion (Ajax chatboxes being one.) I'll look at it more after some much needed sleep.
(Edit: At this point just disabling that plugin portion seems to do the trick. I'd still rather find the conflict and resolve but at this point not having a whitepage when someone tries to post a WoWHead hyperlink will have to do. ^.^)