So some people got a quick response to their complaints to the BBC re calling Scarlet Blake a woman, basically saying the BBC uses whatever the person in question uses, blah blah, nothing to see here.
Some of us got a response a little later, saying they were looking into it, and, ta-da, I've just had an update which says... basically the same as the first lot of people got 
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Scarlet Blake was tried as a woman and the pronoun ‘she’ was used throughout.
BBC reporting in this area follows the publicly available BBC News style guide. It says: “We generally use the term and pronoun preferred by the person in question, unless there are editorial reasons not to do so.” In this case, we considered it editorially appropriate to include the fact that Blake is a transgender woman and did so across our output. We accept that should have been included in the report on the News at One on 26 February.
We greatly value audience feedback - complaints are added to our overnight reports and widely circulated. This issue has also been raised directly with senior editors in News.
This is our response at Stage 1a of the BBC’s complaints process. If you’re dissatisfied with this reply, a follow-up complaint may be considered at Stage 1b. You must submit a follow-up within 20 working days through the BBC Complaints webform. If you do decide to contact us again, please include your case number, and explain why you feel your complaint has not been addressed. We will then review your complaint.