I'm not sure what you want the staff to do about it? Leaving negative trust is all that will happen.
You apparently bought a guide called "Bypass Paypal 21 Day'z Hold" - so you were trying to break the regulations of another company to achieve your goal. I don't want to condone ripoff ebook sellers, but customers sometimes avoid using common sense when someone offers their dreams on a plate. There is little you can do, unless you identify the person to file a police complaint, you might just have to accept it was a relatively cheap lesson on scammer methods.
If it is a Ripoff ebook then why bitcointalk.org forum allowed him to sell on their platform?
And if it is a ripoff then Why moderators allowed him to block other users from posting their reviews and encouraging this seller to sell his scamming ebook? i didn't care about my $50 but i have to warn other users to stay away from his guide.