I can sort of understand why you would need investors, funding is a very important part of this business and you would be becoming big much faster with a lot of money.

Moreover, you are known to constantly brag about your zero rake, it is not really "house edge" in your case because its a game where the money you get should be considered rake, house edge is when a game is versus the casino but this game is player versus player mostly, so you have zero rake in the house. It  means if an investor wants to fund your project, how would you pay him back, or how would they make money ? You are building a business that basically has no profitable idea so far, in order to fund a project investors usually want to know how you can make money with it, without that there is no point of investing.