Service and Bounty are completely different. As for the Services, they pay us with their cash but in return we need to market them with all our efforts. At the service, the quality of the article is brought to the top and so the admin will censor very strictly to accept the participants.
I hope that in the future there will be more such services instead of scam bounty campaigns. I really like cash because we don't have to worry about our reward after it's done in the campaign. In addition, the campaigns at the Service also pay token or coin very on time. It's time for the bounty scam to be pushed to the sidelines.