Hi Bill
I think the confusion over removing public fodlers is even simpler than you think. The problem as I see it is that people delete the databases and storage groups and then come to delete the public folders and can't. The issue is that without at least one maibox database the public folders can't replicate. As there is no replication they can't be deleted.
I think most people with this issue will find that if they create an empty mailbox database the public folders will replicate and then they will be able to delete them.
Just my 2c's worth but you may want to try deleting your mailbox db's in your lab and you will then get what everyone else is getting ..... public folders that just cannot be deleted !
HTH
Phil