Meh. You can't stop people from doing stuff. And if they're going to do it anyway, then... =/
Anyway, there was something that caught my attention... I haven't checked through the whole thread, but are they planning to use the FE3 Book 1 script that I made?
I think Celice mentioned that they should give credit, but... You better PM that guy, I suppose. If you want, I could tell him that you would prefer not.
There has to be another translation somewhere, plus I even offered to provide a translation if they can wait...