The same applies to gambling marketing. Do you know if Twitch streamers are using their own money or playing with "house money"? Do you know if the casino is giving Twitch streamers more favourable odds to make the service look better?
Edit:
> Crypto casinos can also be "provably fair" to win trust from people when they have no track record.
Do such casinos currently exist, or is this a hypothetical? AFAIK currently existing crypto casinos are opaque.