It used to be very useful. Now I just keep it as a joke.
It allows people that say super transphobic things to be marked as green. I've seen people who use slurs like "theyfab" "zippertits" etcetera be marked as trans-friendly.
On the flipside, it also marks a lot of trans-masculine people as transphobic for just discussing the ways in which they've been hurt by transphobia. The people I've seen are not transphobic, they're literally speaking against transphobia. It is confusing and I don't understand why they're being marked red.
I've also seen a lot of intersex people and intersex activists be marked as red too, even ones that are trans themselves or are very pro-trans. I'm intersex and this concerns me a lot.
I don't understand why it's like this now. It used to be so much more useful, but now it seems like it's been hacked by transphobes or something.
Huge shame.