The answer is affirmative, signature campaigns paid to casinos actually make you to gamble. There are some instances in which the payment for signature campaign is less than the minimum withdrawal, in that case one will be required to bet with it to aim for the minimum withdrawal to be able to make withdrawal. Apart from this, the temptation to gamble when you have some balance is very high which is why payment of signature campaign into the casino actually make one to gamble more.
Of course, most people will do it, especially those who gamble easily without good self-control, seeing that their account has a balance in the casino, they will gamble, at least they will be tempted by the game and think about trying their luck, this thought will come in passing after the signature payment is no longer in your casino wallet.