What you claim is that there is some multiplier when the short bitUSD are called and this puts a pressure on the BTS price???

In reality when the shorts are called they do try to buy bitUSD [i.e sell BTS if you wish to call it that], but it:
- happens on the internal market [as opposed on external one, where they would actual drive the price down in comparison with say BTC]
- they use BTS held in collateral for this operation
- and most importantly they do not drive the price down...they just sit there trying to buy bitUSD at the current feed [or 0.9 of it, unfortunately, in the current design].

I really do not see/understand how your multiplier is supposed to work.
Thanks.

By definition, a margin call forces the purchase of a needed commodity. It's like saying "I need to settle this debt right now, the price has changed too much". If the order is executed by putting a buy option at the current price that does not result in the bitUSD being purchased right away, then you can potentially have an open order indefinitely even past the time when the bitUSD needs to be extinguished. If this is the way this system works, then I think some naming convention is not appropriate.

I might be wrong, so I'd like to learn more on this subject.

remove "/rpc" https://github.com/ThePiachu/BitJSONPy/blob/master/hello/hello.py#L5

Tried, same error.