Sorry for your loss if you promote a trading bounty project and still get worse results from them, it happens, get used to it and mind you not all listed bounties cheat bounty hunters,
It's true not all bounties are scam but we must always be careful. Because there are many projects that take investors' money and do not develop their projects. So the projects die. Not all projects in the market are good prices.
There are still bounties that aren't scam at all. The only problem is legitimate projects just turn out to be unsuccessful because investors and bounty hunters nowadays have lost their interest due to increase numbers of scam projects, that is why new coins don't have any good value in the market.