This is true, I participated in the project which lasted only 3 weeks and received 0.5 Eth . And also participated in the project which was 20 weeks and received the same
the first bounty youve joined is lasted only for 1 month which is not really long but you did earn 0.5 eth which is already a high profit for just 1 month bounty . you should be thankful enough because you are too lucky to participate on that said bounty compared to others that cant actually get paid for their efforts .
Re: The longer the bounty, the fewer the earnings?
no thats not true . before the bounty starts , the reward is already allocated which means the reward that you can get is already fix depending on your rank and work reports .