There are success stories of TF beeks from all parts and regions. The difference between success and failure often seems to be an obvious factor: location. That being said, there are stories of success from places seemingly impossible to raise bees sans treatment. Point being, for a new TF beek, it seems that universal truths don't really play a part in success stories, as they are regionally biased.
Unlike treatment beekeeping, where treatments are delivered on schedules depending on brooding, flows, time of year, TF practices, or lack thereof, are open to interpretation and arguably require a steeper learning curve in relation to understanding the nature of bees and utilizing their natural abilities in our favor. The environments in which we choose to keep bees seem to have the most sway on our practices. That being said, to openly discuss success/failure and have meaningful dialogue, would it be better to create regional sub-forums? It could also provide a place for discussion on obtaining local, TF resistant stock, whether it be feral sources or breeders. It would give some categorical direction of where to turn when looking for answers.