The most thing that makes me crazy about online is delay in withdrawal and kyc requirements, ie failure to verify kyc details when submitted to them and lastly delay delivery of deposit. What I don't really like is after winning and they published your winnings like not secure while dealing online so everyone casino should limit how to publish people's winning.
This is what can make anyone to be crazy about online casinos, their is nothing else that can make someone to be mad if not delay of payment, finding it difficult to complete process to withdraw.
If casinos can make withdrawing process so fast , I don't think people will have any hard feelings concerning online casinos.
I have experienced a lot of these things in casinos, although I am not so new in this area I see casinos in a very astute way, not all casinos I clarify, they are branded as new and try to capitalize on the money from the deposits of others players, and when they can't control some vulnerabilities, that's when problems arise and many problems are due to the fact that the money coming in is not equal to the money going out, it happens that the money going out is greater than the money coming in and since they don't have a way to compensate, they have what to do and say that the withdrawals are stopped for the moment with a problem on the platform, they always look for some excuses, and there it becomes a scam.