And now that I have a chance to answer your questions:
STING said:
Did you ever think of writing "mainstream"
I've been making up or writing down stories ever since I can remember, and so far as I can recall none of them were ever mainstream. I can remember a mystery novel I tried to write as a child, and something historical as a teenager. But mainstream ... no.
or any genre other than SFF?
As an adult, I've sometimes thought about writing a historical novel, or a Regency Romance --- thought about, but only in a general way, because all of the stories that I've ever figured out in detail have been fantasy. If a story in another genre ever came into my mind and took hold of my imagination so that I felt I had to write it, I'm sure I would, but so far none has. One thing I doubt I would ever write is a story in a contemporary setting.
Do you read non-SFF books these days?
I read many different kinds of books. Fantasy is definitely my favorite, although I do read SF, also mysteries (rarely by contemporary writers, though -- I prefer authors like Dorothy L. Sayers or Ngaio Marsh), historical novels, novels by 19th century writers, a smattering of other things, and also a certain amount of nonfiction. Some of the nonfiction is research, but sometimes a subject will catch my interest and I will want to read up on it.