We had an employee who created a couple of boards on our workspace (thus the admin of those boards). We left all the boards he created, but he still shows up as a member of one board. No one else is on that one board from our team, but we can't get rid of this guest - and of course it is counting towards our "TEN collaborators".
Our efforts to contact this employee have not worked, so we can't have the board deleted.
I get that Atlassian is trying to push people to the Premium version, but this software is too buggy when it comes to taking control of a board and members. There should be an Admin of the workspace who can simply remove boards. However, since that's not the case, does anyone know a trick on how to remove a Guest who is an admin of a board that no one is using?