From the Bitcoin Wiki article (which I've contributed to):
Moneybookers Terms of Use agreements states "The Company at its sole discretion, reserves the right to close an account of any Customer at any time for any or no reason"[1]. There have been reports of those trading bitcoins for Moneybookers finding their accounts terminated.
- http://en.bitcoin.it/wiki/Moneybookers
I don't remember the exact circumstances that prompted me to post that cautionary note but I believe it was something along the lines as what is seen with PayPal (account closed, funds in the account, including those not involved in the trade, frozen -- not immediately returned).
However, it'll probably work until the moment it doesn't, so you may get days, weeks or months before anything happens.