Poloniex is running a very elaborate complex scam. I don't care who disagrees, and if you do disagree then you most likely have a 39+hour/week job and don't get to sit and watch the website all day and night, if you want. They had "lag" at 5k ppl, at 10k ppl, at 20k at 30k ppl. The same kind of bullshit lag where normal people cannot put orders in, close orders, cancel orders, close margins, transfer balances, get charged lending fees with no orders open, coins held hostage until the 10% move is over with, and many other things that I just am not able to remember atm. They colluded with the DAO Hack to make tons of money from trading fees. I lost 900$ even tho I closed my margin order 900$ in the profit, they let it lag and closed my order where thousands of satoshi away from where I closed it. That was with like 8k users and it lagged all the same it did yesterday with 32k users. It's BS and I honestly believe they will eventually follow the same path as Cryptsy.