I suggest everyone stop using any bots on Poloniex when they are overloaded. The DDos claim is utter bull. Their systems are always bogging down when they hit more than 35K users. there were almost 40K yesterday. It's down again today too. (still is). No API access is working and tons of people have lost money because of the lag/inability to cancel orders or cover short positions. Scary.
Unless they beef up their systems BIGTIME ASAP, a LOT of people will and are pulling their accounts off there for other exchanges. I might be doing the same too.
On the other hand, Leonardo works very well on GOOD exchanges. :-)