Re: 90% Of Project Bounties Are Scams, I'd rather reserve judgement for later and I'll just leave it all to speculation for now on whether or not it's actually true.
Nonetheless, that's why I stay away and not bother myself with doing any sort of bounties, to avoid any heartbreaks and disappointments later.
As long as you are very careful when participating in new projects, I believe you will never be disappointed with it. You need to do research before making decisions, now I see there's quite a lot of good bounty. You can go to the bounty section and make your own reviews