Again, you're bringing up the red herring: that this is really just a legal issue that was adjudicated in the court case, and that the motivation and cause of

Again, you're bringing up the red herring: that this is really just a legal issue that was adjudicated in the court case, and that the motivation and cause of this court case being brought is completely irrelevant to the ethics of what Thiel did. Saying that vengefulness is a part of the experience does not make the actions you perform vengefully suddenly OK, or else a we'd think a lot more highly of most murderers. Further, this isn't a complaint about his emotions. It's a complaint about his wielding his substantial power in order to bankrupt a company he felt annoyed by—it's about his actions, not his feelings.