We are currently working on a casino without any house edge. To give you some answers to your questions: 1We are not looking for profits.2We paid for the hosting costs and do all development as a sort of hobby. please ready our thread if you have any more questions! 
Did you raise the long-hidden thread just to promote your gambling site that provides a 0% house edge?I think this is useless!
0% house edge sounds really impossible because that's the only source of income from a gambling site
even if you only profit from the withdrawal fee, I don't think you will be able to cover all the costs you need
0% house edge indirectly I think is a hoax.