I think it will take a little time for people to adjust. At least with communities you can only post in one at a time unless that community allows for cross-posting. When some front ends went to allowing 10 tags, that kind of opened the floodgates to tag abuse and a devil may care attitude.

Perhaps after hivemind is fully up and running the community owners can get a system worked out that if their community tag is in the first 5 it is rejected. I have seen many communities trying to make the first five tags subject tags, and then you can call on the tribes and curation trails with the last five.