i have not paid much attention to author blogs in my life, nor have i tuned in to a lot of writerly debates, and thus i missed the whole m. john harrison worldbuilding kerfuffle. but it is interesting stuff, and worth revisiting, so i am putting a link to the old entry here:
http://web.archive.org/web/20080410181840/http://uzwi.wordpress.com/2007/01/27/very-afraid/
the wordpress site is gone but this is a way to get back to it.