I have joined so many bounty campaigns but found nothing. Only those give me some bounty which i cannot exchange. can somebody please suggest me any valid airdrop or bounty campaign which you think really worth our efforts.
![Huh](https://bitcointalk.org/Smileys/default/huh.gif)
![Huh](https://bitcointalk.org/Smileys/default/huh.gif)
![Huh](https://bitcointalk.org/Smileys/default/huh.gif)
![Huh](https://bitcointalk.org/Smileys/default/huh.gif)
I don't think anyone will know for sure which project is good. I also participated in many bounty campaigns, but only some of them are listed on the exchange.
This is the general situation of current ICO projects.