Even i'm an enemy of BSIP42 at current situation I temporarly support bitcrabs proposal for the good of the community till the bug is fixed to implement the other solution proposed by Stefan or till the MCR recovers.
That is just speculation... Nobody can guarantee they will not eat current margin.
It depends who is buying the margin.People buying margin to increase their stacke will definetly not decrease the price of BTS however giving the opportunity on such a big sell wall for arbitrage it would at current situation automaticly mean that people would buy cheap BTS at DEX to dump it on CEX with a profit which would lead to a price fall and creating bitcny with a 10% (MSSR)premium.
Making sure what bitcrab proposed to always have margin call price under real price feed (hopefully 1,5-2%) is a fair solution.It won't get the margin so quickly eaten but it will also not have a big negativ effect on BTS price on CEX.
What is important and which clockwork also mentioned on another thread is the quick update of the margin call price in a quick downfall so the open margin calls will eat the open buy orders instead of traders taking them away