Great video from Posie about this:
"Illegal Woman"
The doxxing is very serious given what some deranged individuals on Twitter are proposing to do with the personal details disclosed. (I am not going to repeat or post screenshots).
I hope, but do not expect, that the police would consider this as significantly more "harassing" than misgendering. It puts Posie and her family in some danger so all credit to her for not whimpering and whining about being "victimised" but taking it in her stride.
This exchange on Twitter made me think that that silly "gender spectrum" that Mermaids promotes should be countered by one that replaces Barbie at one extreme with an "Action Woman" doll 
TRA 1: "I for one would love to know how a random person approaches a council with a flag and says "fly this for me" and they just do without question or investigation at all?
Will there be answers?"
TRA 2: "They can't just put a flag up without requesting it and it being discussed... As a community organisation it's never an easy task to have it done."
GC
: "Maybe it was some kind of Ninja Woman under the cover of darkness."