If it says 'status: Administrator' then they are.

If not, and you're receiving Notes from them saying they are a moderator, you can safely tell they're some kind of JOKEZ PRANKSTER who should be ignored.

Complete list as it stands:
peachplumpear
wishpig
polymorphic
tech
lukowski
artbaretta
eurydice
chrispower
bamos
domgourlay
inventory-photo
hamburgler
fishplums
KevinEGPerry
JoeDiddly
matt
Mike_Diver
Parsefone
dionisio
sean
jarock87
polymorphic2
TheoGB
tom__
Wendy_Roby
joeymahone

Thanks