If I use a seed to create multiple accounts, Im assuming I would have to use my alphanumeric private key to send transactions on Ardor Lite? Is that just as safe as using a 12 word passphrase? Entering the private key by hand is more of a challenge than a 12 word passphrase and its not good practice to store keys in the cloud for copy/paste. Do I have to grab the private key from within the ardor client each time?
Also I'm trying to understand the benefit of storing ARDR in multiple accounts. I could see the benefit in spreading coins into multiple accounts in the rare case that a hacker gets into 1/5 accounts instead of a single account that holds everything.
However in terms of privacy, if a user is buying ARDR on a kyc exchange, each time the user sends coins to a new ARDR account, those coins will always be able to be tracked back the account name on the exchange.
What is main advantage of having multiple accounts under a HD wallet? Seems like extra work to have multiple accounts for each transaction unless one is really worried about getting hacked. I must be unaware of other major use cases.