Thanks. Although I wouldn't really call it long term, but rather middle term.
The aim is to generate as much money while withdrawing my original cash asap. Past that stage, whatever I will lose will just be seen as a missed opportunity, not real damage.
Since they have their Prosper 2014 campaign, the chances of being scammed within the next 4months are weak (but not NULL).
We'll see how it goes. I'm following the news carefully anyway and staying alert. I keep you guys posted.