Yep, hit "ignore", that's the answer.
Just because this individual told you a story, you believe it to be true automatically? The fact that he had to PM you with the story indicates to me that you don't know him, and therefore have no way of knowing his TRUE motivation behind plastering this story on here. Seems legit, sure. But... Possibly not. You also hit the nail on the head when you said:
"it is my opinion that he was shafted and treated extremely unfairly FOR NO REASONS THAT WERE OBVIOUS" (my caps)
You don't know what really happened there, and So Broke's version of the story (whatever that story is, I still don't have any details) may not be correct.
So... Someone you don't know told you a story. You accept it as being totally factual. You then continue to do what THE ORIGINAL POSTER EVEN FIGURED OUT WAS WRONG. Which is, specifically, using the name of the interviewer and calling him names (again, on the basis of hearsay from someone not personally known to you). Whether or not you went through Pinnacle to get where you are, it's definitely not cool of you...
Poor judgment, poor taste. Nice work.
And I do happen to like that it's still a "free world", your abuse of it notwithstanding. Hitting "ignore" will hide your posts from ME but not the other 10,000+ members and countless visitors.
FWIW I have no connection to Pinnacle, either. I, too, have had a couple of annoying interview experiences but never felt compelled to say "Captain So-And-So was a d1ck to me in the interview, even if it was deserved. I share stories like this with friends, possibly even in a PM if I feel like it's appropriate, but not on the public board.