Because after ICO Tokens Can be buy anyone without submitting any KYC
Totally confusing this process

ICO have or needed to create your own KYC, in the first place you should know the meaning of KYC. ( Know Your Customer ) in this case you will passed some valid copies of your I'd including passport and drivers licence. so they know you are human not a bot. cause some of bounty hunters and ICO members was controlled by computers.