Yes, Hydax has a unique marketing strategy, within a short time they build more than 6-7 regional communities! Though I am not impressed by their bounty campaign, even I am telling people to not join on that low rewards Hydax bounty, because of they shouldn't get a wide promotion by the bounty hunters by only 3000$!
As a new exchange Hydax has done quite well, although it is a new exchange but they have many features like OTC, perpetual contract. Although their system only has limit orders and market orders without stop-loss orders at the spot trade, hopefully they will add soon.