Signature campaign earnings that I received are being hodl in the account. I don't use it cause I prefer it to be the money for my emergency needs. I will only convert it to USD if I really need it, and if I need something which is essential to my life as a student, I use my other jobs earnings.
Save it to your account, then wait for your signature campaign to end before transferring it to your wallet. The explanation for this is that gambling platform fees can be very high at times, reducing your savings. True, you are not obliged to spend the money on gambling because you are being compensated for your services and have the authority to spend it however you see fit. You could gamble and win some money if you're good at it, but if you're not, the better choice is to save and keep it.