Mules dont move, you need to pay for the character to move it.
They should have
Number of Current ACTIVE+INACTIVE accounts + Free Slots
The Active people not moving and inactive which cannot move, are a variable on their own. They should have been already calculated, which makes sense because
by default you are set to your own server.
I am not forgetting inactive characters but they cannot move. Your 2 inactive characters dont affect "Free Slots" if they have already be accounted for.
This would be true if they did not ALL (almost -2) report full
Server A = 3000, 500 leave, server A on 2500 but still considered full
Server B = 2000, Players from A(500) and C(500) go to B making it 3000.
Now Server B is on 3000
Server A is on 2500
Both are being classed as full, when 1 is not, thus has a server imbalance
I can only see it being true if they are hoping more move to Ragnarok/Ridill, tho i think Ridill is fine.