Curious. My opinion of Kristeva is already so low I'm not sure this moves the dial much, though it certainly introduces another kind of consideration--beyond the one Jon Elster adduced--for thinking poorly of her: "rubbish" work plus collaboration with fascists.
(Thanks to several readers for passing this on.)
UPDATE: Kristeva denies the allegations (about working with the Bulgarian secret police, that is, not about her work being "rubbish"!).