I agree with both of you -- that trans women, as a sample of broader humanity, are bound to have a few bad apples just like any group. Hope no one uses her as proof of transgender deviancy or something awful like that.
I also agree with the sexual predator point. Unfortunately, my experience in young trans circles is such that manipulative, predatory people are disturbingly common. Again, bad apples, but it really is terrible watching exploitative people prey on a very vulnerable group by using the language of equality, social justice, and support. Young trans people (myself included at the time!) are so often looking for guidance and validation, and people do take advantage, especially sexually.