Power user quota.
Using Jamroom
I don't think you tested with the label account.
1 log in with the label account.
2. Go to the lable profile page.
3. In the header where it has artists, you should have a '+' allowing you to create a new artist profile. IT IS NOT there.
4. If you go to your profile settings, and try to make a change, you cannot. You get an error. It thinks that you are part of the member quota (4).
5. If you log in as admin, and go to the quota browser, you will see that there is nobody in the member quota.