Exactly, there is no need for different advertising because they need to attend different blockchain platform in order to build credibility in the market in future their implementation should be helpful in order to sort out the problems. For startup companies, it is very hard to lead the roadmap but with dedication definitely, investors will have an an eye on the project.
Attending Blockchain conferences is one of the best advertisements, as the team can meet major investors and new partners at these events.
Attending conferences the team has more chances to interest and find investors, to enlist the support of partners.