Compare this to if the new casino has no Bitcointalk ANN, it will take time before many people know that the casino is already scamming their users, on the long run, the casino must have made a handful of money from scamming their customers.
Information is very vital when dealing with new online casinos this days.
I think that is the most important feature when it comes to crypto casino, having an online presence on the bitcointalk forum. The gambling section here is very big and we have a lot of casinos that promote their services here. This has benefits for the casino owners because it's good advertising and people that are interesting in crypto gambling will find their casino more easily. And it also has benefits for the customers, we can share our experiences and also warn each other if there are any red flags. The first few issues you mentioned in your list are part of any new company that offers online services. When creating a new system more website there is always going to be some issues, even the best designed website will have some issues, because nothing can be tested to a 100%. We shouldn't worry to much about it as long as the casino is trustworthy and there are no negative experiences by other users. My approach to new casinos after researching online about reviews is to only deposit a small amount. Like that I can still enjoy the games at the casino and take advantage of a deposit bonus to boost my initial bankroll. In case things go wrong and there is an issue I don't feel so bad losing only a little money. Reading the ToS is also important for any new casino so we understand their withdrawal and bonus schemes to not fall for any small imprints that we would have missed otherwise.