Charlie - Probably not scum
Polar Bear - Probably not scum (less confident than Charlie)
Ginger - Could be scum, have several posts towards and about Ginger you can read in my ISO
Crowned Witch - Probably not scum
Dale - Probably not scum
Michelle - ???
Hayumi - ???
Cal - mostly townie, has slipped down and could be scum with reloaded
York - what makes her town?
Reloaded - could be scum, probably with cal
Bittersweet- fell off, could be coached as scum, has some townie elements
PoE is Michelle, Hayumi, Cal, York, Reloaded, Bittersweet, Ginger.
If Cal/Reloaded are scum - you're looking at Ginger, Bittersweet, York is my guess.
If Cal/Reloaded are town it's going to be Hayumi, Michelle, Bittersweet, York, Ginger.
Your commonalities are Bittersweet, Ginger and York. QED these are the slots that need resolving first. There you go, there's your solve.