I was backreading some topics in Marketplace and found out that signature campaign was not included in the first service of this website... What if Signature Campaign was never introduced... What else could be the Service we can apply for?
I believe there would still be opportunities you can find here in the forum even if there are no signature campaign like in the bounty campaign. There is translation, social media campaign, blogging and other services you can apply for not just signature campaign. Many people visit this site every day finding ways to earn some coins so if one of the ways to earn will be stopped then maybe others would find other ways online to earn and would not visit this site anymore.
If you have other skills also that people need especially IT related ones and graphic designing then many people are also looking for it here in the forum. There are many options in here to earn as long as you keep looking for it.