That cleared a whole lotta doubts for me, thank you webtricks, really appreciate this. My notion regarding moving coins to secure wallets was that the exchanges ideally have the transaction history - wallet address that you're moving it to for HODLing and that they will share it with the concerned authorities so they tax you even when it's not converted to fiat, that they'll be able to identify who it is by investigating the blockchain leading to the wallet. It's cleared now, thank you once again.