"Trans-identified' seems pretty goady - people generally don't identify as trans but as the opposite sex"
Respectfully, I disagree. I looked around trans rights and trans issue related websites yesterday and the overwhelming majority of people living and identifying as trans disagree with you as well. This is indeed how they identify themselves: as trans.
A large number of terms like trans-identified man or trans-identified male abounded in positive descriptions of such individuals by themselves as well as other authors on a large number of these websites. It is clearly NOT seen as a derogatory term within most parts of the trans community.
Indeed, the only places where I have found it discussed as a derogatory term were those dedicated to campaigning against TERFs. The logical conclusion therefore is that amongst the wider trans community* this is a neutral term to define an individual, but an extreme fringe group consisting mostly of males sees it as an insult.
Why is a community which serves the needs of 20 million users, the vast majority of whom are females, having its language policed to this degree for the sake of less than a few thousand, incredibly hostile, males?
I understand you are aiming for a policy that will save you from the trans activists and their complaints, but once our language is cleansed in accordance with your new rules, they will move onto the language we use to talk about the things that matter to us: pregnant woman, breastfeeding, nursing mother, female reproductive organs, women's troubles, female genital mutilation etc etc
Because that is exactly what is happening right now on Twitter and Facebook and IRL - the language women need to describe their uniquely female experiences is being attacked - this also includes trans inclusive groups that accept the claim that transwomen are actual women. Even the mere fact that we wish to discuss our uniquely female experiences is being attacked.
And for those groups btw, it always started with this kind of appeasement.
*this is how GIRES, a trans rights campaign group identifies the group of individuals who identify as the opposite sex - as trans and trans-identified (and loads of other trans people and groups, too).