- It has to be a low monetary amount, like a couple of bucks at most, though even this is tricky. People aren't willing to sheir their account details (for good reason) with any random entity, and a CC number gate will also block many well meaning reporters. It's probably the trickiest part here to justify (though presumably many Reporters want to get paid at which point they'd have to provide these details anyways, but oh well) - Refunds for well intentioned bug reports that get denied, so if you send blatant spam you lost out on the 5 bucks or whatever it'd cost you, but if you're making a legitimate report that wasn't accepted for whatever legit reason, you get it back. Makes it so incentives are still there, though I guess this can be abused (not like it's not already) - Fee waivers and a whitelist system. After all, if you've sent in multiple reports and they turned out to not be spammy, then you deserve the benefit of the doubt to freely send in reports. This can also be extended to a chain of trust in the wider bug reporting ecosystem, which encourages people to stick to a "main" account where their identity and reputation is established

Though I still expect lots of people wouldn't like this system, and for good reasons as well. Not sure what a perfect system would look like though, to be honest