The forums don't work like that. It needs to be predefined. Otherwise, i'd be alright with giving people that ability. MyBB is an awful engine.
Completely misread the above post. - Adding prefixes in isn't a bad idea. If people want it, we'll see about making accommodations. Ideally it isn't a bad idea to name them properly. Although at the bottom of a page with prefixes, people can 'sort' by these tags. Displaying all of the threads with that tag up at the top. The sorting mechanic is probably the most beneficial.
