In principle, you think correctly. This usually happens but I have never seen such a number of participants. Just do not forget that the project team can always change the rules of the bounty company. And plus one person will not be able to benefit for the ICO and as a result the project will not be able to collect the soft cap.
yes, I also think that it is impossible for the project to only have one participant in the signature campaign, for example there is, I think the team will not continue the project (minimal participants / scammed projects), good projects always have many participants. so the OP can redefine about such a project, in my opinion it includes the criteria of a fraud project.