The question you should ask yourself is why is it important for you if she says Dumbledore is gay or not? Are you surprised/shocked that gay people exist? It should not even be seen as newsworthy.
It is not a question of if Dumbledore is gay or not, and so what if he is,
it does not, for me anyway, detract from who he was in the story.
My question was what was Rowlings point. For what ever reason she has, she stirred something up. The Harry Potter Saga was over. Everyone more or less moved on, except probably the truly die hards and fan-atics. Which I am neither. I enjoyed the journey, but was glad to see it end.
I was just wondering what she what she thinking when she made this announcement after all was presumably said and done.