This is a very interesting and captivating piece.
I am captivated by the case of the mottler account: if it was the case of lost keys or what. Because being a dormant account with so much HP.... man! This sounds weird! However, if it were the case of lock keys, then it is an example for us to properly guide our keys.
How I wish there will be an option in the registration process that allows you put in your email address so that the document of your keys are sent directly to your email also (in addition to the download and copy option on hiveonboard). I think this may help