Offering a test bounty to attract users to your platform is a good idea, but requiring people to send an email to request it seems unnecessary. Instead, you could create a promo code or special link that you can post here, which anyone can use to receive sats for testing. This would make it easier for potential users to access the bounty and start testing your platform.
To prevent abuse of the testing funds, I recommend disabling the withdrawal feature. This would ensure that the satoshies are only used for testing purposes and not withdrawn for personal gain.
Or he can choose to ask the user to send personal message to his account, so he can pick which users he want to give the 1000 Satoshis.
Lol it's really a big joke if there's an user want to abuse by withdrawing the 1000 Satoshi bonus, I think there's a minimum withdrawal, fees need to pay to the miners and they might additional fees for their profit. It doesn't worth for $1.