Got this idea from here: http://xenforo.com/community/threads/support-for-tags.3185/#post-47641 On a rather big forum... there are always cases when a new thread pops up which is pretty similar to something that has already been posted and responded to in the past. One solution is to close the thread after posting a link to the earlier thread. The other solution is to merge the new thread with the older one. I prefer to use the second one... Users end up using the report button on vB to alert me about duplicate threads... A system where users can suggest similar threads in the past for merging can come real handy to me and probably more forum administrators here. Essentially, you can add a new section below named Similar Threads... And members can post relevant links there. It would be visible to people in the thread. and moderators can be given a quick option to merge them all!