administration of terms

Hi !

Thanks for the great work. I am wondering whether there is any plan to implement some sort of term approval feature with synonym collapsing, as there is in unitag. That way, administrators could select which terms are approved or rejected. Otherwise, users can add a lot of gibberish, and it is hard to maintain a nice and relevant set of terms for one's site. Perhaps this should be part of a separate module, I don't know, but I have been searching for other modules that would do this, but found it only in unitag, which is somewhat similar to the synonym collapsing module.