Being able to remove members from all projects
I just had to go through 12 projects and remove someone who had left our company. This is extremely inefficient. Does this functionality already exist and if not, it would be great to have :)
Yes, user management is needed. I need to remove an agency member from our org, but still keep her in existing projects. It currently actually does what you were looking to do actually - it removed her from everything!
Having decent user management is very important, especially if you have many projects.