Vandermeer hit the nail on the head regarding jaylake's original post regarding self-revelatory fiction and its role or lack of one in sf/f/h. 

I don't think it's a failing of genre or of the writer. Some writers need more distance from reality to open up. Others need less. What matters more than this is that the "mix" is right--that you are writing not from received ideas but from details of the real world. And that some of those details are personal.

Absolutely. Jay might was well have said that po-mo fiction stands in the way of calving something real from the writer's true self. Or surrealism does. Or television scripts do.  Because regardless of genre employed or how much "self " a writer reveals, certain details must have a simple ring of truth for fiction to resonate emotionally with readers - and Jeff is right to assert that some of those details ought to be personal -

- so that a stranger can read a story and think:

Is this fictional character in this impossible situation feeling what I have felt? Because this is what it's like. It's what it's like to be me. Jesus, am I actually reading that I am being understood?

- because it's not the writer's cool memory or autobiographical material that matters. The writer is not the one who is flayed open in a truly resonant story. It's the reader who is laid bare.

And that requires execution. A human touch. The "mix," as Vandermeer said. 

Takes years to learn that, if it comes at all, and genre is irrelevent.