Email crypto spam is the big problem. Only special email address for crypto could solve this problem more or less
This will solve the issue, Bounty hunter should not use there personal email when joining in bounty campaign. Always expect the worst that there details will be exposed in public.
Yes, I totally agree with you, indeed bounty hunters are not allowed to use personal email addresses when participating in bounty campaigns, but not everyone who does this uses a fake email address or changes email addresses, because according to them changing email will be confusing if they forget to save it, then after distribution is complete and have to open the email in the dashboard, because they distribute it via registered email.