The latest code was found in the source code of the official Defiance web pages.
There was a line of text with "unique_user_id" followed by 8 characters. A person took that set of 8 characters and ran them through a Base64 translator... and found it was another code.
When codes get that hard to find, I bow my head to superior knowledge and just read the forums for more codes! -)
GW2: Yak's Bend - Dolnor Numbwit, Elondra, Festoon Turnbuckle
LOTRO: Gladden - Dolnor Numwit, Elondra Numbwit
TSW: Elondra "Clorisa" Numbwit, Noldor "Dolnor" Numbwit, Festoon "Swivel" Turnbuckle
City of Steam: Whatever needs testing (ie: DolnorGoblin), Numbwit on forums
SWTOR: Dolnor, Elondra, Noldor