I don't see the problem getting solved honestly. One party keeps on whinning that he didn't get his item, while the other keeps losing his cool (chill lar encore, we know how you feel, but keep yer cool man!)
If I were the seller, warning signs would have been shot. A lot of keywords used by the potential buyer that leads me to believe that he's not serious. Threadstarter said that he confirmed that he wanted to buy it, but I don't see him using strong affirmative words. Enquiring about the product does not show that you WILL DEFINITELY get the item, it merely shows interest, and by the way the threadstarter displays his "interest". I as the seller would be wary as well.
With no words of total conviction and such attitude (especially the "just forget it" part), it's understandable that encore would jump at the oppurtunity to sell the product to the other person.
However encore, it would have been mighty nice of you to inform him first. Though I totally understand your situation as he has been sending negative vibes since the start.
Usually I'm on the buyers side whenever such disputes occur, but for once, I feel compelled to say that this is one of the rare occasions when both parties should be blamed.
So encore, as fellow forumer, I'd suggest you just say sorry to the threadstarter (though you don't want to - show him ur more decent than him by not being vindictive). And threadstarter, just settle down, these things happen, I know you're anxious about the product, and it shows that you're a smart consumer. I myself ask a multitudes of questions before purchasing an item. But you have to becareful of the words used and how it is phrased. Some words can show different meaning than those intended. Though they say there is selling etiquette, I also believe that there's buying etiquette.
So chill ppl! Stop the flaming and start the loving