Using a bot can also be detected by admin and they can ban the account with the claim that the gambler is trying to cheat the system.
I still prefer betting on my own without anything like bot or whatsoever. That can bring good profits.
Why do you think his account will be banned for using bots?
A gambling script, as explained multiple times above, is nothing but a tool used to place bets automatically. Only few casinos ban their use, but they aren't, in any way, used to cheat the system.