Recently many of good bounty managers or at least the ones that used to be good has gotten neg trust , people like "needmoney" , "hua_hui" , "blockeye" and many others, What do you guys think?
should we participate in their new projects?
Negative feedback is given to reflect somebody's opinion. The best approach is to read yourself the reason for the feedback, since sometimes it's not a problem at all, but sometimes it's better to stay away.
One of the bounties I've participated this year was managed by somebody with negative trust. He got the red because he is not careful enough with people's shares and the way he manages the campaigns generates a lot of spam. Indeed, both claims were correct I've found out, but he was fair and paid my shares.
I see now that one of the managers "promotes scam ICO". Well, this is a problem. The hardest job for a bounty manager is to check the background of the project. If he doesn't do that, we have a problem. If people find out the project is a scam, the bounty manager has to act very fast and close the bounty. Just check what yahoo62278 did with a bounty that has be proven to be scam (since even he is not perfect):
This campaign is closing. I have decided not to continue working with this team due to the recent scam accusations and possible ponzi claims.
Everyone was paid as a pay per post vs straight pay since I ended it a few hours early.
https://bitcointalk.org/index.php?topic=4486941.0 Read about the accusations here and also in their ANN thread. You may all remove your sigs
If this happens with a bounty you are in, you may also get flagged for promoting a scam. And this could get your bitcointalk account flagged or your twitter/fb accounts blocked. That's why you have to be very careful on what bounty manager you trust.