There are two or three points being pushed (over and over again) on this thread....
1st: The person about whom this thread is written has failed to be in communication for a week. Seems likely that at worst he's your average scoundrel, at best he's rotten at communication but the deal will be completed satisfactorily (sort of) for all concerned. We all agree that taking $450 and giving nothing for it IS the action of a BAD GUY. So time will show if this individual is a bad guy or not.
2nd: Everyone uses the BOI in their own way. To some it is a location of "last resort" that they would go to after trying very diligently to solve their issues with the offending party. To others it is a place to go to the instant there is even the slightest suspicion of nefarious behaviour, regardless of the truthfulness of the suspicion. Most of us are somewhere in between. We all have our opinion and our opinions are NOT WRONG.
3rd: it's easy if you've avoided car accidents, earthquakes, other natural disasters to believe that there is very little, or even no single thing, that would keep you from being in contact with someone on a daily basis, if only to communicate your delay. Sure it is not that frequent that it happens, but it DOES happen. One midnight I was up late creating a test to give to my math students the next day. Suddenly I was doubled over in pain and my boyfriend had to rush me to the emergency room. A week and two surgeries later I was released from the hospital. It was another week before I could sit at my computer. And as I was doubled in agony before the first surgery, and after it awaiting the second to fix the problems created by the first, I gave no thought to my online interactions. At that time I didn't work with live animals, but I did do online transactions, I had auctions running, and auctions I'd bid on, and all of those things went by the wayside. I was very lucky that I received no bad feedback from the people involved. Luckily I was in contact with them before they took it that far, though they had emailed me several times and were starting to head towards that 'bad feedback' stage, but they weren't too quick, and my online reputation was not destroyed. Accidents DO happen, as do difficulties that keep people from doing what they know is right and proper. LIFE happens.
Good luck getting your money or your critters. Hopefully this is just one of those difficulties that will be quickly resolved to the satisfaction of all involved.