Welcome! This forum has a treasure trove of great info – Scouters helping Scouters! Just a heads up, though - all content, information, and opinions shared on this forum are those of the author, not the BSA.
There have been many issues with adding and removing families to the unit groups that we have not been able to get fixed. I suspect many of your families do not know about the unit forum because they are not in the group. In my opinion, given the lack of support for unit forums, they should not be used.