Yes definitely you can earn! some bounties pay immediately and you can earn money from them. But some take lots of time. You have to chose them wisely.
Delay distribution , locking period and long time campaign is the reason why many people need to wait longer to recieve payment . You already advertise the project for long time but in terms of salary distribution they are making it difficult for hunters to clam ,that only want is to a fair distribution of payment from what job they've done.