Is this still going on? He's told you he doesn't want your money. How is he scamming you if he's not taking your money???
he is scamming the community. by asking the community for funds!
just because he now says he refuses to take money from one person does not make him legitimate.
he claims he is not asking for any money. yet is asking for 3BTC for his 'dry test' and 300BTC for the actual project.
there have been 6 people that have requested basic fundamental questions. not about the technologies he is supposedly selling under NDA that the island requires. but purely about this guys own knowledge/experience and background.
a scam is not just about after the fact. its also about spotting the scams before they happen.
EG when you receive an email saying you have won the Nigerian lottery and all they request is a small deposit to validate the lottery win and cover administration costs.
would anyone say it is not a scam and actually allow others to blindly pay into such an obvious and known scam. would you honestly and morally tell a friend or family that it is ok to deal with such a scenario
if this person wants to seek funds from people then he should reveal such basic of information.