The problem is they are scared to put more money in hot wallet... always dealys
They are scared for good reason. I, for one, feel safer knowing that my money is on a cold wallet and I am fine if I have to wait a couple of days for a withdrawal. My only suggestion would be to get rid of the 18-hour notice on the website.
Ditto. I'd rather wait 7 days than risk losing it. Especially for anything more than 0.1 BTC
I would say having a hot wallet with a button on the finger to stop it whenever needed is a lot better choice than not having money in the hot wallet at all. If you are afraid that there could be a hack and the money should be in the cold wallets, just have a hot wallet act as if a cold wallet with a switch button where you can remove all the money from there to a cold wallet with an easy click.
That way if the admins ever sense a trouble going on, they would not allow any withdrawal to happen, move the money to cold storage and check out what is going on. But having zero money on hot wallet and making people wait for their withdrawals with the idea that cold storage is there to protect them too could only work for few hours only, not constantly and consistently doing the same thing.