Payouts without delay is what is needed to gain trust. The rest can be used to set up a scam. KYC is a detriment to us players. It's a hassle not needed.
Maybe it needs to be added by providing good service and having a support system that can provide answers or solutions to problems faced by users. That can certainly increase the credibility and trust of users to continue using the casino because they can get comfortable playing gambling.
Today, many casinos have realized this and are constantly trying to provide the best to users. Casinos don't want to lose users and the potential profits that casinos can make.