It's not like I don't like backstory, but every game I tried to play in this board so far I had to write two paragraphs of story, with irrelevant and pointless details.
I prefer something simple like "He was a boy born in a small village, which was destroyed in a monster attack, and he swore to become stronger to protect his people."
I also think character development(that is, what will happen AFTER the game begins) is more important than what happened BEFORE.
So even if you make a character without backstory at all, it can still be an interesting character depending on the way it interacts with that world.
In case someone else misunderstood me, what I want is not gm/player that abhors backstory, but one who doesn't require two paragraphs of it.