Reputation maybe not enough for other people to convince that they submit their Kyc since for them even though how reputable they are still there's risk beneath especially if the casino got hack and they have other financial accounts to protect. For such reason I guess its understandable for other to safekeep their personal details so that no issue will happen to them. Although we know roobet is reputable casino there are still people will doubt about their reputation or how they make those data's safe.
Reputation can be built, gained but can also be destroyed too.
We should be very cautious with new projects, new platforms that quickly grow and gain their reputation. I don't imply all of those projects, platforms are good and will scam us later but we must be more careful with new rising stars. Some of them will have bad management and will collapse later when the market, general economic conditions become bad and they can not control their finance models.
Lessons are still hot with Terra, FTX, Three Arrows Capital, Voyager and more in the last two years of bear market.
With old platforms and they have good reputation, we can trust them more. If they already went to one or two bear market cycles, they understand the market well and how serious a bear market is, they more likely have good risk management for their business. They are old and big already so they no longer have need to get rich quick and don't take extreme risk with big leverage.