I don't know this person at all, I know her less than I know my usual "OMG HOT" focus who is in my avatar. She's just a photo. Why in the world would I be saying I would want to be her friend or be in a relationship with her based on a photo? All I have in those photos is a body so that's what I'd be responding to.
Perhaps the ladies in question are fans of True Blood and know of the actress, perhaps they've seen her in interviews and were delighted by her personality, perhaps they know this person better than you and are not just judging her based off a picture.