I have to buy 1000 USTD to win just 0.1 BTC ... This must be a joke; I invest more then I could eventually win (if you could win). And 100 days zero trading fees is also not a highlight; every new exchange give fee free trading now a days.
There are few exchange sites that also offer zero transaction like Cabinhood but this exchanges is not that famous. Unlike cabinhood, HBUS is sponsored and supported by Houbi. My expectation would be for the traders in houbi will also try HBUS as trading soon because of their big promotion.
There will be no problem on the attracting investors and sponsors I think because its Houbi exchange who are partnered with them.