I'm having trouble understanding the logic here.
About the no tx fees, one other point is that stakeholders are diluting 130k bitshares per month for Yunbi. while Yunbi exchange collects no order tx fees. this does not give a good impression. the dilution is not meant to subsidize exchange fees for yunbi to attract users and have misleading volume statistics.
So, you would rather Yunbi take
more of your money, because the money they are already taking from you isn't for trading on their site? That doesn't make any sense. Why can't we be glad they are offering free trades? If they had delegate pay AND were making more money on the side, this would be satisfactory behavior, but the fact that they dropped the fee should be seen as a bonus.