If a gambling site is already running for years, then they already have the funds. There's no reason for them to need more unless they got raped by a hustler and their bankroll is currently running low on funds which I really doubt.
Again, it will not have a good review until the casino has been running for a long time. How can you review something that's just starting out? A gambling casino cannot be a reputable/trusted one unless they have been running for months/years already. Then again, that means they are already funded.
Most gambling sites that's looking for investors are the new ones. Which means, it's not yet reputable and it doesn't have any reviews yet.
No, even a casino is running for years already, they are giving some chance for an investor to invest in their bankroll.
We know that there are some site that are doing so, it's depending on their capacity and management why they are allowing to invest people.
If they've got enough funds for it, it's like a specialty investment, they are using people's money for generating another money.
We know about this type of investment so whether they are long or not they can still have the reputation from the community.
I don't usually ask this but can you please name one. Name one casino that has been around for a while and is accepting investments? I don't really see the point in increasing their bankroll when they've been around already. Why would they let other people enter their business when they can keep all the profits to themselves.
Also for the last paragraph, please name one casino that has a good reputation right away. I think it should really take a month or so before they can prove that they are trustworthy and also it will take a while for the customers to give feedback to that gambling casino since there are bugs/glitches or even problems that you can only find out about after playing for a while.