The rules for the Nebula Awards have been reformed (taking effect from next year’s awards, which will be for works published this year; this year’s awards still cover both last year and the year before).
I think this is excellent news. Indeed, I think I may have been the only person to raise this issue in an online public forum with Russell Davis when he was running for SFWA president; though in fairness
See here for links to further discussion.
Our comments have crossed – thank you for delving further into this subject. From the evidence available to us (and indeed the areas of silence) as marshalled by you, I agree that Fiona Gaunt is by far the most plausuble candidate.