If I was starting any crypto project I would post a roadmap first then develop a project to a stage that can show people some demo of a use case at least. If this development would be in range with previous covered road map than this is already a good sign to investors this is a serious project. Then I would try to get some partnership.

After that, I would start a bounty but only when the project is ready to and marketing would have the proper impact. Starting a bounty, airdrop or any other too soon is a typical mistake of majority projects today.

Wasting an airdrop period is a huge waste of team energy and wasting huge power of bounty or airdrop as a marketing tool.

I found many project dead that had a good idea but simply started bounty or airdrop to soon and then getting crazy when bounty founds gone that they cannot attract community and investors.