I currently have only 2 Basic slots available and I still get the option for System Group List from the System List page. Didn't try, but there's a tab available to create a new group as well. Please fix - shouldn't be available for Basic slot people - even if I did have Workgroup slots at one time.
I have a hunch that your account is flagged as enterprise... so if you've ever had a workgroup entitlement, you'd see this option from now until the dawn of time. I believe I queried chip about this awhile back... his answer was along the lines that it would be a bad thing for the user interface to drastically change for users whose entitlements expire. Chip? Any thoughts?
I can check the db; what's the username of the account?
Confirmed through WebQA that new user group_test2 had no 'System Group' option until Enterprise entitlements were activated. Set expiration for 2 days on these, so on Monday, we'll see if the option remains available. If it does, will close.
Slots did not expire; Will investigate.
I believe that the theory about options not changing when your entitlements expire is correct; Closing.