You could charge a fee and give the money back if the report is wrong but seems well-intentioned.
I see the issue with this, it's payment platforms. Despite the hate, cryptocurrency seems like it could be a solution. But in practice, people won't take time to set up a crypto wallet just to submit a bug report, and if crypto becomes popular, it may get regulations and middlemen like fiat (which add friction, e.g. chargebacks, KYC, revenue cuts).
However if more services use small fees to avoid spam it could work eventually. For instance, people could install a client that pays such fees automatically for trusted sites which refund for non-spam behavior.
I see the issue with this, it's payment platforms. Despite the hate, cryptocurrency seems like it could be a solution. But in practice, people won't take time to set up a crypto wallet just to submit a bug report, and if crypto becomes popular, it may get regulations and middlemen like fiat (which add friction, e.g. chargebacks, KYC, revenue cuts).
However if more services use small fees to avoid spam it could work eventually. For instance, people could install a client that pays such fees automatically for trusted sites which refund for non-spam behavior.