https://bitcointalk.org/index.php?topic=341082.0There's also this, but these are posts that I consider isolated incidents where one person had an awful time and it doesn't speak to the average experience of hundreds, thousands, however many customers.
Personally, so far, they do seem very 'sorry, these are the rules'. I set up 'instant buy' after creating an ACH transaction and they won't cancel it, honor the instant, or allow cancellation of the instant-to-be-processed in a week.
Frustrating, but not the scam I've read so far. Not happy, but for the price, not calling my bank/card company just yet.