As the title says.
Do you think DiceBot will give you profit if you will just run it for a long period of time?
If yes, how much bankroll do you need and what is your dice setting ?
First, you should never download a dicebot because it's made to steal your login information and to rob you.
Second, even if you'd made a dicebot by yourself so you shouldn't worry about being robbed and even if you have a bankroll of 1 BTC you're still going to lose everything in the long run. It's just the matter of time when the house edge gets you.