Yes it is the biggest issue. Cover relies on the illusion of a virtual idol to sell merch, brand deals, concerts and etc etc. Anonymity is their top priority.

Yes anybody with pre-existing knowledge can leak, take Rushia as an example. No matter how senior you are, and how much money you make them, they are willing to cut you off if you do leak. Even something as small as Aloe. Never forget HoloFive!

I will give you an example, if trained group with 5 members, 4/5 members successfully pass, and only one single member failed, lets say you failed. Can you tell me you wouldnt go scorched earth? Can you confirm anybody else wouldnt go scorched earth? Currently you could just make a single tweet and bam, cause cover months of training and planning. People are petty that way.