Sometimes people are quick to jump to conclusions. I've done it myself before

, and sorry about your hand. That said, even if it is difficult to type, and took you an hour to write a very brief response to the OP so he didn't feel like he was being ignored or possibly ripped off, it would have been an hour well spent.
It is a lot of money to most people, and I can understand his concern.
To the OP, I understand your frustration and concern, but if you felt the need to post a possible issue, it would have been better to just use his screen name first, before publicly listing his real name. Not that anyone is trying to hide, but posting an issue with the persons real name, it is now available on the interwebs for anyone that does a search, and it doesn't go away. If he didn't reply, and you didn't get the knife after a reasonable period of time, then by all means, then post the persons actual name...