Between your comments and others in this subthread, this is beginning to look uncomfortably like an organized campaign. That is not a legit use of the thread.
Obviously there's no direct way for anyone who doesn't know the facts of an anonymous story to respond to it. It would be difficult even for Peter to respond specifically; confidentiality issues don't just disappear when someone posts a comment. But it doesn't feel right to leave this unanswered, either, so let me add my own simple anecdote: working with Peter, who helped me get a visa, was hands-down the best experience I've ever had with a lawyer. And you can see the similar things that other HN users had to say when we announced the AMA: https://news.ycombinator.com/item?id=10699898.
There's a reason why YC uses Peter to help every international startup they fund. If he didn't deliver the goods, that wouldn't happen.
I don't mean that to denigrate your friend's experience—it's impossible to evaluate.
