Unfortunately, scam projects will never be prevented. You might run into some bounty campaigns that might not pay bounty hunters like you after promoting them in different social media platforms.

For sure, users here already shared a list of reputable campaign managers where you can join in their bounty campaigns that they're launching but at the end of the day, a bounty campaign that's being launched by a reputable campaign manager doesn't mean a success and you can get money through it already. It still has risks whoever the manager is. You want some income? As a member ranked, I would rather find another source of income than joining bounty campaigns. Don't be like other users here who are just spending their time posting proof of authentications on bounty section just to earn a few bucks.

Find another way to earn money, but at the same time, learn more about cryptocurrency. Even just the basics will do. Good Luck, OP.