Let's start with KYC, this ICO project developer's will launch a project and state that they want to remain unknown whiles they forced KYC on both the investors and bounty hunters.
The big question should KYC be mandatory for everyone...
That depends on the project, if there is an announcement at the beginning, then that is compulsory.
Will the anonymous goals be achieved with KYC?
Obviously no, KYC or Know your Customer is policy for people to be not anonymous.