You can control the bounty manager to hide the email lists on spreadsheet yourself, you don't need to make post about it on here, I'm guessing that this happens almost every time when a new bounty managers tries to manage a new project, no reputable bounty manager will do such thing
Maybe the word should not be ' control the manager' but call the manager to the implications. Since my exposure twice, I usually check spreadsheet before applying for a bounty campaign. This email exposure flood your mail to numerous spam and phishing mail, am still dealing with some till date. If manager does not correct this and project looks enticing, hunters can choose to open new mail like someone said, it is an alternative to control so many repercussions