Curious on if this has even been brought up, but had a random thought of a 'Best Answer' or a reply rating system. I could see this being useful on some thread where it is a basic question and you have several people posting different things.
Wouldn't be sure how much of a server load it would be, it has been forever since I have hosted my own phpBB forums. I know phpBB is a pain to mod at times, especially when you have to correct code inside that MOD and update it as you update the main phpBB code, so don't know if that would be reason enough since I have realized you have kept it pretty much stock. That and more options for novice phpBB users can cause for confusion that they are worth, but thought I would bring it up anyway to see.
http://www.phpbb.com/customise/db/mod/karma_mod/
http://www.phpbb.com/community/viewtopic.php?t=1214795 - Topic Solved MOD
Wouldn't be sure how much of a server load it would be, it has been forever since I have hosted my own phpBB forums. I know phpBB is a pain to mod at times, especially when you have to correct code inside that MOD and update it as you update the main phpBB code, so don't know if that would be reason enough since I have realized you have kept it pretty much stock. That and more options for novice phpBB users can cause for confusion that they are worth, but thought I would bring it up anyway to see.
http://www.phpbb.com/customise/db/mod/karma_mod/
http://www.phpbb.com/community/viewtopic.php?t=1214795 - Topic Solved MOD