Is there a mod out there for to add Tags to threads/posts?
Tags can be indexed in search sites which gives you more listings. As far as I know prefixes cant do this.If you think about it prefix can be used in a way the same as tags, maybe limited somewhat, but at least you have more control over them. Thing with TAGS, they are only useful if when clicked they show a page with all threads using the same tags. Much like how wordpress works and why it's such a great feature in it.