root is no worse from a security standpoint than any other user. If knowing your username helps somebody guess your password or bruteforce your key, the usernam

root is no worse from a security standpoint than any other user. If knowing your username helps somebody guess your password or bruteforce your key, the username isn't the problem. Using multiple users is great from a compartmentalization / user_management standpoint, but it doesn't protect against brute-force.