Very interesting input from both sides (except Shuai, who didn't provide anything good to this thread except creating it). I think if both systems survived the last BTC crash then this is already a good sign that both teams are on the right track. In my very personal opinion, a working dynamic liquidation processor sounds like a more elegant solution than having locked/dead money. Elegance of course doesn't justify vulnerabilities ...

The particular tier levels of liquidity in NuBits in fact seem to show some effect - however, as nice as it is that tier 5/6 were never required, it also means that there is no large scale field test of those levels as of yet.