Board Thread:General Discussion/@comment-38340188-20190220005700/@comment-168424-20190227002620

New users probably wouldn't know to use Forum, but they don't need to. Users who know about Forum would use it if they felt more comfortable.

I don't think switching would be that bad or at least no worse than switching between Message Wall and User Talk pages. As long as the change is announced well ahead of time. Regardless, there is almost no chance that a choice will be given to switch from Discussions to Forum, so the point is moot.