You'd think for guy wanting to get his business off the ground he would have handled this way differently.

So many ways the seller could have made this right and yet he chose the low road...

I've seen this same scenario happen a number of times on the ol'interweb over the years. A guy comes up with a decent product or service idea and tries to make a go of it, yet absolutely sucks at communication, customer service, handling money, and being honest. A few potential customers get burned and the sellers rep and business is in the toilet.