Marcin Kot Bastkowski goes by Kot.
Marcin Czepek goes by Marshan.
Marcin Dorocinski goes by Dorota.
Marcin Ulanowski goes by U-1.
Lee Go goes by Willy.
Midge :)
David Gohman goes by Go-Go.
My Do goes by Phimy, and MyMy.
Will Englander goes by Will.
Will Blomquist goes by Will.
Will Blagrove goes by Will.
Will Young goes by Will.
Chuck Seifert does not appear to go by any commonly known nicknames.