It is important to pass the KYC procedure to secure both parties: yourself and the project you want to contribute to. As you verify your identity with KYC (or sometimes AML), you ensure the team that you are not a scammer and you can be entitled for taking part in the project. On the other hand, you may be sure that the project itself is not a scam if it uses KYC/AML. This means that the team fights money laundering and scam, pays its taxes and comlies with legal regulations.
That is why if you want to take part in iAM's token sale, you are required to pass KYC first. Believe me, it won't take much time and effort. And if you face any challeges on the way, please let me know, I'll be happy to help.