I think we need to completely separate the crypto money we buy for investment and the crypto money we use for gambling. Personally, from this point on, I will use as many USDTs as possible for gambling.
I never separate crypto fuor investment/ trade with gambling, all in one address and the safety is my disciplines about limit. This moment I choose LTC because fees is not too heavy, the network not also crowded so I can deposit and withdraw under 10 minutes and success. The problem is our psychology, use any digital money is fine but must have limit that never braked by our greedy.
The part of never seperate one investment fund from others could be dangerous even for someone who's every discipline about limit because the last time i checked every body is greedy at some point. However, using any cryptocurrency is also not advisable and if you check most gamblers usually make use of doge/LTC to play but it will be good if gambling site could support stablecoins.