I'm just gonna answer based on what I understood from the article, I don't think an ordinary person who is just merely an enthusiast of crypto can be an Ambassador, based on what I understood I think the team are looking for people who are skilled and knowledgeable on blockchain technology and on Smart Contracts, they are also looking for people who are willing to speak about the project on events and certain gatherings so basically they are looking for professionals or social media influences who have the audience and resources to gather more people to invest and join the unibright community.