Keeping altcoins in wallets is not hard. I already feel tired of the ICO teams, which have begun to massively deceive bounty hunters. They invented and are now widely using the new form of fraud - checking KYC after the end of the ICO so as not to pay the earned tokens. In many cases, such a test cannot be passed because their proposed forms do not accept a variety of answers from different countries with different laws. Such verification can be carried out only before joining the campaign of generosity, and not after it, when the work has already been done.