Here is one I need help with. I did some major group re-structuring last week, and a few dozen people (maybe more) are now not part of any group, not even the default "Users"
This causes them to get mysql errors when trying to browse the forums, since they aren't in a group so they get weird errors.
I want a query to find these users who do not have a group assigned so I can fix their accounts. And even better, another query to automatically search for someone without a group, and if they don't have one they are assigned to the Users group.