I've been hit by flakers every time I have tried to buy a Busse, either on my way to the post office or as I was going home to make payment (so after all parties came to a concrete agreement and deal was finalized). So I've moved on from that brand, there are plenty of knives out there to choose from, one less company isn't going to hurt me!
Recently I had a member contact me with a knife for sale. I wasn't in position to pay, but we worked out a trade, my knife for his and a knifemaker membership for me. My knife got to him, he refused it because he was no longer comfortable shipping to Canada. Crappy excuse to me, especially as it only came from me asking why no information about sending his end, but nothing I could do about it. He refunded my shipping, but not the return shipping for the refused package so it ended up costing me over $20 for my knives to take a trip to the states and back. I won't do business with that member again, but will with others, just like there are other knife companies, there is an endless supply of knives out there, so the loss of one (so close that I could taste it, with just the features I am looking for) isn't that big of a deal.
I do, however, wish that informing the community about flakers after an agreement would not be looked down upon. I think that by naming those that agree then reneg after but before money was transferred, can help establish patterns, something I'm sure flakers are able to get away with currently. I don't feel that every instance will be reported, as most of us understand how life can be, but being able to notice if somebody is going around making agreements then breaking them just before deals are finalized by money is good for deciding who to conduct transactions with.
But in the end we will still have lowballers, flakes, rip offs, and the best knife exchange on the best knife forum in the world, populated by some of the best people in the world (above and beyond knives),so I'm happy.