Every rule can be abused.
Her entirely intentional (with regard to the conclusion) actions led to someone committing suicide. What do you think she's done wrong exactly? IMO it's plain and simple manslaughter, whether by purely directing the guy repeatedly, or if she had started the car herself and told him to get in.
Your argument has meandered from "thought crime" to "you can't control what someone else does" to "I'm not saying she isn't in the wrong", which is in no way a clear and coherent argument (and is debatably self-contradictory). Concede the points that you've danced past, such as this having nothing to do with "thought crime", and that yes, it is possible to control and manipulate people through words alone.
Bolded statement for truth. Now REALLY actually THINK about what you just stated. Think of the potential there. Think of the consequences. The extremes. Not only could they happen, they WILL happen. We see it every day. This is why you have to think very hard and get past your personal thoughts before you jump on the lynching bandwagon because something emotionally seems horrible to you.
I can think she is in the wrong and still not agree with the outcome. Piracy is wrong, but I don't agree with the fines and jail time associated with them, etc.
Thought crime, I could give you because it was more of a joke at the time because it is an extreme scenario. Unfortunately, it is entirely plausible and it still falls in line with my argument. She typed words. It was thoughts she stated. She didn't put the rope around his neck. Manipulation? Mind games? Certainly. Horrible person? Sure. It doesn't make her an accomplice. Now, beyond that...what about her actions during and after? That's a separate issue. I believe there are already laws in place regarding, not reporting a crime (which suicide is considered?).
Let's go through a different scenario that doesn't involve death. I tell you you should rob a bank. I tell you how you can do it. You laugh it off and say no way. I continue to tell you you should. Playing mind games until (however hyptothetically it may seem) you finally convince yourself yes you could pull it off because it sounds so plausible. Maybe even something in your life changed that necessitates that it could solve a bunch of your problems. You decide to do it, you do it, you get caught. I had no part in it, I didn't assist you, I was not involved in any way other than telling you to do it and maybe even what you should to to do it. Am I guilty of bank robbery?
Let me ask a question that may seem unrelated -- what are your thoughts on assisted suicide?