Just in, margin trading on Polo & two days notice to do KYC info or they'll likely freeze your funds:

Greetings from Poloniex!

We're happy to announce that Margin Trading with Peer-to-Peer Lending is now available at Poloniex! You can now borrow funds from lending users to open long and short positions with 2.5x leverage on our XMR, DASH, XPR and LTC Margin Trading platform. You can also loan funds in the same selected markets in 1 day intervals at up to 5% interest.

In addition, we are requiring that all users provide us with their first name, last name, and country of origin by May 20th, 2015. This information is mandatory for all users and all withdrawals. Go to your Profile page to get started.

The Poloniex Team


Otoh Edit: so get your funds off there pronto if you'd rather not...

Edit 2, you need to provide the info to even see your present balances

Edit 3, UK is found under G (Great Britain maybe), Spain under E (España)