The thing about a post lashing out at a seed company who you feel did you wrong is that it says more about you than the seed company. Every company has these types of posts about them, because every company has this happen. IMO, Dr Gt is not one of them that does it on purpose. If you feel like you want Dr Gt to take some involuntary accountability, never order from him again, send an email to Greenman about your negative experience and spread the word about his review page.
http://www.seedbankupdate.com/su.html. Contact is on the page. IMO, that would be more effective as far as making him pay, or getting back at him, or whatever.
I understand your frustration. It is a lot of money( Especially from Dr Gt), and it is frustrating. It's sort of like walking up to a roulette wheel. Don't put down more money than you are perfectly fine with losing. Due to the nature of the biz, there is always a chance you will lose the money. You know this though.
One piece of advice I can give is that Hempdepot.com and Peakseedsbc.com have came through for me 100% of the time. Every other seed company I have ordered from has failed at least once. So, I only order from those two, and I win every time. I believe the post office and customs are the cause of no shows from the reputable companies (like Dr Gt) 98% of the time. 1.9% they were too high. .1% they thought you were an asshole at some point in the transaction.