Excuse me for my ignorance but could somebody explain to me how this lending works?
Are those leased btc intended to be used only on poloniex for trading or
users that borrow this BTC can use them outside the exchange for other purposes?
If so what is used as collateral for the borrowed BTC?!
How this work?
Thanks.
You are putting up bitcoin that is being used to trade of margin. So if someone only has 1 btc, by borrowing some coins from you, they are able to trade as if they had say 5 btc. They cannot withdraw your coins and if the price of bitcoin drops to a certain amount the site will automatically sell their position and pay you back. The risks involved are that the price drops so fast, that the site cannot sell everything and pay everyone with lent coins back, and that poloniex will get hacked.