Anger :(

[Rianna Humble]

I could find no definitions as used by the Forums

You don't need to look very far, they are a sticky note in the Introductions and Reintroductions section.

If the OED says that, any other definition is in Humpty Dumpty territory where you can invent your own definitions

They are community definitions. Your anger appears to be directed at everyone who agrees to use those definitions to interact with people in this community.

Incidentally, have you ever considered how language evolves? This happens by people using terms in a specific manner whether or not the dictionary defines them in another context.

i did a web search for "transgender" and wiki topped the list....

Did you do a search on crossdressers.com? If so you would have found this thread: https://www.crossdressers.com/forums...-Abbreviations