Badgerthebodger, "trans person" is fine. TIM or TIF I personally find offensive, with GD, don't identify as "a trans", I identify as a transwoman (because personally I want men and women to keep their own labels, it's easier for everyone). I know my biology but prefer not to be reminded of it, it's part of the condition. And I respect anyone who wants their own space away from me, male or female. I don't belong there, and don't want to be there. Naturally I'm happier with other TS people (actually regardless of their sex), because we understand each other and we've been equally pissed about how things have gone.
Some people do identify as a "trans" which personally I find weird that they're identifying as a condition. It's like saying "I'm a cancer" or something.
The transgender umbrella is how people without GD got us to this mess we're facing now. TS people (those who change their body with hormones and surgery) have basically been erased and replaced by this transgender ideology which is scary and harmful. The only reason we (ts people) conceded was because we felt for others with GD who couldn't get access to surgery because of financial constraints.
It's a horrible, rare and lifelong condition and the last thing that any TS person wants to do is to impose anything on anyone or frighten anyone, or bully or harass people as is happening now.
Mumsnet is like the only space where I can voice this, and I've got lots of cool labels like "hbser", and "truscum" to my name, while having to tolerate "transfeminine" people sporting beards, acting and talking like men and telling me that they have a "ladypenis" which makes me want to hurl.