It's also ridiculous to claim to "understand the whole fraud aspect" and then imply that they are engaging in fraud because the money hasn't been transferred back to the other guy's account within a single business day. And claiming that Dwolla is too good to be true because it didn't work out for you right away? Really you want us to take you seriously?
These things take time and these businesses cannot and should not be run without adhering to processes and rules that aren't transparent to consumers. As a payment processor, a false positive is much worse than a false negative.
Dwolla is providing a fantastic and much-needed service. In my experience the people at Dwolla are providing a great service and doing a good job of it. Their support has been responsive and very well done.