Maybe a sub forum for Freecad? It just got huge upgrade.
Ick. 
That opens a massive can of worms IMHO. Do we really want that kind of crowd here? And if we give them a forum, what about SketchUp, LibreCAD, Q-CAD, etc. etc. etc. ad nauseum.
What is the downside to being inclusive?
Only downside I see is the forum list gets longer. Depends on traffic expected, maybe we should have an “Other CAD” forum until traffic warrants a dedicated forum.