Hmmm... I don't know if I agree. I think we can reclaim the word slut the way we reclaimed the word queer.
Part of me likes to use it in sexual situations, calling myself a slut, not as a term of denigration but as a positive thing. However because it is loaded with a lot of baggage I tend to use the word "nympho" instead to refer to myself. Like there should be a word that means "woman who has a high libido and loves sex for pleasure and wants to have it all the time" but in a positive way. So I tend to say "nympho" to refer to myself.