MyBB really needs this mod
Similar threads? Isn't that already built in? Or are you looking for something more topic specific?
Yes, I also need this mod, vBulletin and there is a mod of phpBB, the which show the related topics with the topic, in showthread.php
you can enable similar threads from Admin CP > Board Settings > Change > Show Thread Options > Show 'Similar Threads' Table
set to yes
regards