Do you have a link to this product? I cant find any debit cards that can be loaded with bitcoin.
There are many debit cards you can currently use with doing verification so I won't post any links for them, but one project exist without kyc called Coindebit.io, they are currently on hold and transitioning from beta to full phase release in next few months.
I am not sure I understand how scammers would benefit from a website that lets you give bitcoin to other people.
Ask them how and why they would benefit from this, not me.
If they can earn money from regular giftcards while scamming people, than they can do exactly the same thing with Bitcoin giftcards.
Better be ready for that and think of the ways how you would protect from this attacks.