I deposited the minimum just to give it a go (80c... Can't hurt?) and the Ponzi sent me back an absurdly larger amount of bitcoins... Not quite sure what happened, but hey. When this hit the top of Hacker News the site wasn't loading any bitcoin stats or such so I feel the load must have had something to do with it possibly. (That or I just got double spent on, which would be a real sneaky trick to get a user to send back the 'perceived' amount, but coming out of their pocket.

This is personally why I wouldn't trust any programs to handle currency so openly on the web. The inability of the average user to stress test or put proper testing through applications can cause quite a fault. Having experienced the methods that banks undergo for software cycles there is a tiny chance someone would have the resources to properly engineer something so fragile (relative to money) properly.

Because of this I would assume the main reason the author actually shut the site down (or at least so suddenly) was because of scaling technical issues.