Well, I hate the term “skimpy” but as a girl who actively does this (and a fat one at that), I think it’s great! Where whatever the fuck you want you know? Whatever makes you happy makes me happy.
In terms of ‘stealing’ men, I think it’s a problematic term because it places the responsibility on the woman, not the man who is IN THE RELATIONSHIP. Also, you can’t steal a person; they have to actively choose to engage in sex with someone else. It’s not ideal, assuming it’s a monogamous relationship, but it is what it is. People cheat. Fuck, the majority of married people cheat, statistically.
I don’t think it gives a bad impression of women; men cheat too! It’s just a part of life and part of human relationships. I don’t think it says anything about women as a gender.