smart move for yobit, but this can turn bad if LISK sold is more than they bought in ICO.
How?
If YoBit sells more than they have then that's on them not LISK. People that buy from them are taking the risk that YoBit will really have the LISK and can exchange their LISK tokens 1:1 for real LISK.
If you take that risk, it's on you. Not LISK